Niven, Jennifer. The Ice Master: The Doomed 1913 Voyage of the Karluk. New York: Hyperion, 2000.
Oppenheim, Janet. The Other World: Spiritualism and Psychical Research in England, 1850–1914. New York: Cambridge University Press, 1985.
Pagden, Anthony. European Encounters with the New World. New Haven, Conn.: Yale University Press, 1993.
Picchi, Debra. The Bakairi Indians of Brazil: Politics, Ecology, and Change. Prospect Heights, Ill.: Wareland Press, 2000.
Pickover, Clifford A. Strange Brains and Genius: The Secret Lives of Eccentric Scientists and Madmen. New York: HarperCollins, 1999.
Price, Willard. The Amazing Amazon. New York: John Day Co., 1952.
Pritchett, V. S. The Tale Bearers: Literary Essays. New York: Random House, 1980.
Ralegh, Walter. The Discoverie of the Large, Rich, and Bewtiful Empyre of Guiana. Transcribed, annotated, and introduced by Neil Whitehead. Manchester, U.K.: Manchester University Press, 1997.
Reeves, Edward Ayearst. Maps and Map-Making. London: Royal Geographical Society, 1910.
–. The Recollections of a Geographer. London: Seeley, Service & Company, 1935.
Revkin, Andrew. The Burning Season: The Murder of Chico Mendes and the Fight for the Amazon Rain Forest. Washington, D.C.: Island Press, 2004.
Rice, Alexander Hamilton. «Further Explorations in the North-West Amazon Basin». Geographical Journal 44, no. 2 (1914).
–. «The Recent Expedition of Dr. Hamilton Rice». Geographical Journal 56, no. 1 (1920).
–. «The Rio Branco, Uraricuera, and Parima». Geographical Journal 71, no. 2 (1928).
–. «The Rio Branco, Uraricuera, and Parima (Continued)». Geographical Journal 71, no. 3 (1928).
–. «The Rio Branco, Uraricuera, and Parima (Continued)». Geographical Journal 71, no. 4 (1928).
–. «The Rio Negro, the Casiquiare Canal, and the Upper Orinoco, September 1919–April 1920». Geographical Journal 58, no. 5 (1921).
Riffenburgh, Beau. Nimrod: Ernest Shackleton and the Extraordinary Story of the 1907–1909 British Antarctic Expedition. London: Bloomsbury, 2004.
Roosevelt, Anna C. «Dating a Paleoindian Site in the Amazon in Comparison with Clovis Culture». Science 275 (1997).
–. Moundbuilders of the Amazon: Geophysical Archaeology on Marajo Island, Brazil. San Diego, Calif.: Academic, 1991.
–. «Secrets of the Forest: An Archaeologist Reappraises the Past – and Future – of Amazonia». Science 32 (1992).
–, ed. Amazonian Indians from Prehistory to the Present: Anthropological Perspectives. Tucson: University of Arizona Press, 1994.
Roosevelt, Anna C., et al. «Paleoindian Cave Dwellers in the Amazon: The Peopling of the Americas». Science 272 (1996).
Roosevelt, Anna C., John Douglas, and Linda Brown. «The Migrations and Adaptations of the First Americans: Clovis and Pre-Clovis Viewed from South America». In The First Americans: The Pleistocene Colonization of the New World, edited by Nina G. Jablonski. San Francisco: California Academy of Sciences, 2002.
Roosevelt, Theodore. Through the Brazilian Wilderness. New York: Charles Scribner’s Sons, 1914.
Royal Geographical Society. «Colonel Fawcett’s Expedition in Matto Grosso». Geographical Journal 71, no. 2 (1928).
–. «Dr. Hamilton Rice on the Rio Branco». Geographical Journal 65, no. 3 (1925).
–. «The Monthly Record». Geographical Journal 54, no. 2 (1919).
–. «The Monthly Record». Geographical Journal 48, no. 4 (1916).
–. «The Monthly Record». Geographical Journal 41, no. 6 (1913).
Ryan, Simon. The Cartographic Eye: How Explorers Saw Australia. Cambridge, U.K.: Cambridge University Press, 1996.
Schurz, W. L. «The Distribution of Population in the Amazon Valley». Geographical Review 15, no. 2 (1925).
Semple, Ellen C. Influences of Geographic Environment on the Basis of Ratzel’s System of Anthropo-geography. New York: Henry Holt, 1911.
