Dyfyniad APA

(1985). The least developed countries. New York: United Nations.

Dyfyniad Arddull Chicago

The Least Developed Countries. New York: United Nations, 1985.

Dyfyniad MLA

The Least Developed Countries. New York: United Nations, 1985.

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