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.
Shackleton, Ernest Henry. The Heart of the Antarctic: Being the Story of the British Antarctic Expedition, 1907–1909. 2 vols. London: W. Heinemann, 1909.
Simon, Pedro. The Expedition of Pedro de Ursua & Lope de Aguirre in Search of El Dorado and Omagua in 1560–1. Edited by William Bollaert. London: Hakluyt Society, 1861.
Sims, George R., ed. Living London: Its Work and Its Play, Its Humour and Its Pathos, Its Sights and Its Scenes. 3 vols. London: Cassell, 1901–3.
Slater, Candace. Entangled Edens: Visions of the Amazon. Berkeley: University of California Press, 2002.
Smith, Anthony. Explorers of the Amazon. New York: Viking, 1990.
Sobel, Dava. Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time.