APA (7th ed.) Citation

Whittlesey, D. S., Colby, C. C., & Hartshorne, R. (1942). German strategy of world conquest. Farrar & Rinehart, inc..

Chicago Style (17th ed.) Citation

Whittlesey, Derwent Stainthorpe, Charles C. Colby, and Richard Hartshorne. German Strategy of World Conquest. New York, Toronto: Farrar & Rinehart, inc., 1942.

MLA (9th ed.) Citation

Whittlesey, Derwent Stainthorpe, et al. German Strategy of World Conquest. Farrar & Rinehart, inc., 1942.