Cita APA (7a ed.)

Fried, A., & Sanders, R. (1964). Socialist thought. Edinb. U.P..

Cita Chicago Style (17a ed.)

Fried, Albert, y Ronald Sanders. Socialist Thought. Edinb.: Edinb. U.P., 1964.

Cita MLA (8a ed.)

Fried, Albert, y Ronald Sanders. Socialist Thought. Edinb. U.P., 1964.