Cita APA (7a ed.)

Harrington, M., & Jacobs, P. (1959). Labor in a free society. Calif. U.P..

Cita Chicago Style (17a ed.)

Harrington, Michael, y Paul Jacobs. Labor in a Free Society. Berkeley: Calif. U.P., 1959.

Cita MLA (8a ed.)

Harrington, Michael, y Paul Jacobs. Labor in a Free Society. Calif. U.P., 1959.