Cita APA (7th ed.)

Foster, W. Z. (1968). History of the three Internationals ; the world socialist and communist movements from 1848 to the present. Greenwood Press.

Cita Chicago (17th ed.)

Foster, William Zebulon. History of the Three Internationals ; the World Socialist and Communist Movements from 1848 to the Present. New York: Greenwood Press, 1968.

Cita MLA (9th ed.)

Foster, William Zebulon. History of the Three Internationals ; the World Socialist and Communist Movements from 1848 to the Present. Greenwood Press, 1968.