Dyfyniad APA

(1977). The United nations and outer space. New York: United Nation Publication.

Dyfyniad Arddull Chicago

The United Nations and Outer Space. New York: United Nation Publication, 1977.

Dyfyniad MLA

The United Nations and Outer Space. New York: United Nation Publication, 1977.

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