Influences of geographic environment of the basis of Ratzel's system of anthropo-geography,

APA Citation

Semple, E. Churchill., Ratzel, F. (1911). Influences of geographic environment of the basis of Ratzel's system of anthropo-geography. New York: H. Holt and company; [etc., etc.].

MLA Citation

Semple, Ellen Churchill, 1863-1932, and Friedrich Ratzel. Influences of Geographic Environment of the Basis of Ratzel's System of Anthropo-geography. New York: H. Holt and company; [etc., etc.], 1911.