Perkins, Frances. The Roosevelt I Knew. New York: Viking Press, 1946.

Peterson, Maya. “US to USSR: American Experts, Irrigation, and Cotton in Soviet Central Asia, 1929—32.” Environmental History 21 (July 2016): 442—46.

Pini, Antonio I. “Classe Politica e Progettualità Urbana a Bologna nel XII e XIII secolo.” In Villes et sociétés urbaines au Moyen âge, edited by M. T. Caron, 25–27. Paris: Presses de l’Université de Paris Sorbonee, 1994.

Pisani, Donald J. “State vs. Nation: Federal Reclamation and Water Rights in the Progressive Era.” Pacific Historical Review 51 (August 1982): 265—82.

Pisani, Donald J. Water and American Government: The Reclamation Bureau, National Water Policy and the West, 1902–1935. Berkeley: University of California Press, 2002.

Pitts, Lynn F. “Relations Between Rome and the German ‘Kings’ on the Middle Danube in the First to Fourth Centuries A. D.” Journal of Roman Studies 79 (November 1989): 45–58.

Plato. The Laws. Translated by T. J. Saunders. London: Penguin Classics, 1975.Plato. The Republic. Translated by D. Lee. London: Penguin Classics, 1987.

Pnevmatikos, John D., and B. D. Katsoulis, 2006. “The Changing Rainfall Regime in Greece and Its Impact on Climatological Means.” Meteorological Applications 13 (December 2006): 331—45.

Pohl, J. Otto. “A Caste of Helot Labourers: Special Settlers and the Cultivation of Cotton in Soviet Central Asia: 1944–1956.” In The Cotton Sector in Central Asia Economic Policy and Development Challenges: Proceedings of a Conference held at SOAS University of London, 3–4 November 2005, edited by Deniz Kandiyoti, 12–28. London: School of Oriental and African Studies (SOAS), 2007.

Polastro, Riccardo, A. Nagrah, N. Steen, and F. Zafar. Inter-Agency Real Time Evaluation of the Humanitarian Response to Pakistan’s 2010 Flood Crisis. Dara Report, 2011.

Polybius. The Histories. Translated by R. Waterfield. Oxford: Oxford University Press, 2010.

Popescu, Adina. “Casting Bread upon the Waters: American Farming and the International Wheat Market, 1880–1920.” PhD diss., Columbia University, New York, 2014.

Porisini, Giorgio. “Le bonifiche nella politica economica dei governi Cairoli e Depretis.” Studi Storici 15 (July – September 1974): 589–623.

Portmann, Robert W., S. Solomon, and G. C. Hegerl. “Spatial and Seasonal Patterns in Climate Change, Temperatures, and Precipitation Across the United States.” Proceedings of the National Academy of Sciences 106 (April 2009): 7324—29.

Potter, David S. The Roman Empire at Bay, AD 180–395. London: Routledge, 2014.

Pournelle, Jennifer. “Marshland of Cities: Deltaic Landscapes and the Evolution of Early Mesopotamian Civilization.” PhD diss., University of California, San Diego, 2003.

Powell, John W. Report on the Lands of the Arid Region of the United States with a More Detailed Account of the Lands of Utah. 2nd ed. Washington, DC: Government Printing Office, 1879.

Preti, Domenico. “La politica agraria del fascismo: Note introduttive.” Studi Storici 14 (October— December 1973): 802—69.

Prishchepov, Alexander V., V. C. Radeloff, M. Baumann, T. Kuemmerle, and D. Müller. “Effects of Institutional Changes on Land Use: Agricultural Land Abandonment During the Transition from State-Command to Market-Driven Economies in Post-Soviet Eastern Europe.” Environmental Research Letters 7 (June 2012): 024021.

Procopius. History of the Wars, Books I and II. Translated by H. B. Dewing. London: William Heinemann, 1914.

Purzycki, Benjamin G., C. Apicella, Q. D. Atkinson, E. Cohen, R. A. McNamara, A. Willard, D. Xygalatas, A. Norenzayan, and J. Henrich. “Moralistic Gods, Supernatural Punishment and the Expansion of Human Sociality.” Nature 530 (February 2016): 327—30.

Putnam, Aaron E., D. E. Putnam, L. Andreu-Hayles, E. R. Cook, J. G. Palmer, E. H. Clark, C. Wang, F. Chen, G. H. Denton, D. P. Boyle, S. D. Bassett, S. D. Birkel, J. Martin-Fernandez, I. Hajdas, J. Southon, C. B. Garner, H. Cheng, and W. S. Broecker. “Little Ice Age Wetting of Interior Asian Deserts and the Rise of the Mongol Empire.” Quaternary Science Reviews 131 (January 2016): 33–50.

Quilici Gigli, Stefania. “Su alcuni segni dell’antico paesaggio agrario presso Roma.” Quaderni del Centro di studio per l’archeologia Etrusco-Italica 14 (1987): 152—66.

Racine, Pierre. “Poteri medievali e percorsi fluviali nell’Italia padana.” Quaderni storici 21 (April 1986): 9—32.

Radivojević, Miljana, B. W. Roberts, E. Pernicka, Z. Stos-Gale, M. Martinón-Torres, T. Rehren, P. Bray, D. Brandherm, J. Ling, J. Mei, H. Vandkilde, K. Kristiansen, S. J. Shennan, and C. Broodbank. “The Provenance, Use, and Circulation of Metals in the European Bronze Age: The State of Debate.” Journal of Archaeological Research 27 (June 2019): 131—85.

Ralph, F. Martin, and M. D. Dettinger. “Storms, Floods, and the Science of Atmospheric Rivers.” EOS 92 (August 2011): 265—72.

Rawlinson, George. A Memoir of Major-General Sir Henry Creswicke Rawlinson. London: Longmans Green and Co., 1898.

Rawlinson, Henry C. “Memoir on the Babylonian and Assyrian Inscriptions.” Journal of the Royal Asiatic Society of Great Britain and Ireland 14 (1851): i – civ, 1—16.

Reader, John. Africa: A Biography of a Continent. New York: Vintage Books, 1999.

Reberschak, Maurizio. “Una storia del ‘genio italiano’: il Grande Vajont.” In Il Grande Vajont, edited by M. Reberschak. Verona: Cierre Edizioni, 2003.

Reimer, Michael. “The King-Crane Commission at the Juncture of Politics and Historiography.” Critique: Critical Middle Eastern Studies 15 (Summer 2006): 129—50.

Reinhold, Meyer. Marcus Agrippa: A Biography. New York: W. F. Humphrey Press, Geneva, 1933.Reuss, Martin. “Is It Time to Resurrect the Harvard Water Program?” Journal of Water Resources Planning and Management 129 (September 2003): 357—60.

Revelle, Roger. “Mission to the Indus.” New Scientist 17 (February 1963): 340—42.

Revelle, Roger. “Oceanography, Population Resources and the World; Roger Randall Dougan Revelle, Director of Scripps Institution of Oceanography, 1951–1964,” an oral history conducted in 1984 by Sarah Sharp, University of California, Regional Oral History Office, Bancroft Library. Berkeley: University of California Press, 1988.

Rey, Sébastien. For the Gods of Girsu: City-State Formation in Ancient Sumer. Oxford, UK: Archaeopress, 2016.

Richard, Carl J. The Founders and the Classics: Greece, Rome, and the American Enlightenment. Cambridge, MA: Harvard University Press, 1994.

Richards, John F. “The Indian Empire and Peasant Production of Opium in the Nineteenth Century.” Modern Asian Studies 15 (February 1981): 59–82.

Richerson, Peter J., and R. Boyd. “Cultural Inheritance and Evolutionary Ecology.” In Evolutionary Ecology and Human Behavior, edited by E. A. Smith and B. Winterhalder, 61–92. New York: Aldine de Gruyter, 1992.

Richter, Bernd S. “Nature Mastered by Man: Ideology and Water in the Soviet Union.” Environment and History 3 (February 1997): 69–96.

Rinaldi, Rossella. “Il Fiume Mobile. Il Po Mantovano tra monaci-signori, vescovi cittadini e comunità (secoli XI–XII).” In Il Paesaggio Mantovano nelle trace materiali, nelle lettere e nelle arti, edited by E. Camerlenghi, V. Rebonato, and S. Tammaccaro, 113—31. Florence: Leo S. Olschki Editore, 2005.

Ritvo, Harriet. The Dawn of Green: Manchester, Thirlmere, and Modern Environmentalism. Chicago: University of Chicago Press, 2009.

Roberts, Clayton. “The Earl of Bedford and the Coming