Cita APA (7th ed.)

Kelly, R., & Rieve, E. (1956). Nine lives for labor. New York: Frederick A. Praeger.

Cita Chicago (17th ed.)

Kelly, Richard, i Emil Rieve. Nine Lives for Labor. New York: Frederick A. Praeger, 1956.

Cita MLA (8th ed.)

Kelly, Richard, i Emil Rieve. Nine Lives for Labor. New York: Frederick A. Praeger, 1956.