Semple, E. C. (1968). Influences of geographic environment on the basis of ratzel s system of anthropo-geography. New York: Russell & Russell.
Chicago Style CitationSemple, Ellen Churchill. Influences of Geographic Environment On the Basis of Ratzel S System of Anthropo-geography. New York: Russell & Russell, 1968.
MLA CitationSemple, Ellen Churchill. Influences of Geographic Environment On the Basis of Ratzel S System of Anthropo-geography. New York: Russell & Russell, 1968.
Warning: These citations may not always be 100% accurate.