Dyfyniad APA

United Nations. (1967). Yearbook of the United Nations 1967. New York: Office of Public Information.

Dyfyniad Arddull Chicago

United Nations. Yearbook of the United Nations 1967. New York: Office of Public Information, 1967.

Dyfyniad MLA

United Nations. Yearbook of the United Nations 1967. New York: Office of Public Information, 1967.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.