APA (7th ed.) Citation

Swomley, J. M. (1970). American empire: The political ethics of twentieth-century conquest. Macmillan.

Chicago Style (17th ed.) Citation

Swomley, John M. American Empire: The Political Ethics of Twentieth-century Conquest. New York: Macmillan, 1970.

MLA (9th ed.) Citation

Swomley, John M. American Empire: The Political Ethics of Twentieth-century Conquest. Macmillan, 1970.