Cytowanie według stylu APA (wyd. 7)

Semple, E. C., & Ratzel, F. (1911). Influences of geographic environment, on the basis of Ratzel's system of anthropo-geography. H. Holt and Co..

Cytowanie według stylu Chicago (wyd. 17)

Semple, Ellen Churchill, i Friedrich Ratzel. Influences of Geographic Environment, on the Basis of Ratzel's System of Anthropo-geography. New York: H. Holt and Co., 1911.

Cytowanie według stylu MLA (wyd. 8)

Semple, Ellen Churchill, i Friedrich Ratzel. Influences of Geographic Environment, on the Basis of Ratzel's System of Anthropo-geography. H. Holt and Co., 1911.