APA (7th ed.) Zitazioa

Herling, J. (1964). Labor unions in América. Fawcett Publications.

Chicago Style (17th ed.) Zitazioa

Herling, John. Labor Unions in América. Nueva York: Fawcett Publications, 1964.

MLA (9th ed.) Zitazioa

Herling, John. Labor Unions in América. Fawcett Publications, 1964.