Dyfyniad APA

(1991). Foreign affairs: Winter 1991/92. New York: Council on Foreign Relations.

Dyfyniad Arddull Chicago

Foreign Affairs: Winter 1991/92. New York: Council on Foreign Relations, 1991.

Dyfyniad MLA

Foreign Affairs: Winter 1991/92. New York: Council on Foreign Relations, 1991.

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