Semple, E. C., & Ratzel, F. (1911). Influences of geographic environment, on the basis of Ratzel's system of anthropo-geography. H. Holt ; Constable.
Citação do estilo Chicago (17ª ed.)Semple, Ellen Churchill, e Friedrich Ratzel. Influences of Geographic Environment, on the Basis of Ratzel's System of Anthropo-geography. New York : London: H. Holt ; Constable, 1911.
Citação MLA (8ª ed.)Semple, Ellen Churchill, e Friedrich Ratzel. Influences of Geographic Environment, on the Basis of Ratzel's System of Anthropo-geography. H. Holt ; Constable, 1911.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.