APA (7th ed.) Zitazioa

Tung, W. L. (1969). International organization under the United Nations system. Thomas Y. Crowell.

Chicago Style (17th ed.) Zitazioa

Tung, William L. International Organization Under the United Nations System. Nueva York: Thomas Y. Crowell, 1969.

MLA (9th ed.) Zitazioa

Tung, William L. International Organization Under the United Nations System. Thomas Y. Crowell, 1969.