APA (7th ed.) Citation

Whittlesey, D. (1944). The Earth and the state: A study of political geography. Holt.

Chicago Style (17th ed.) Citation

Whittlesey, Derwent. The Earth and the State: A Study of Political Geography. N.Y.: Holt, 1944.

MLA (8th ed.) Citation

Whittlesey, Derwent. The Earth and the State: A Study of Political Geography. Holt, 1944.

Warning: These citations may not always be 100% accurate.