Dyfyniad APA

Copley, G. R. (1979). Defense & foreign affairs. Copley & Associates.

Dyfyniad Arddull Chicago

Copley, Gregory R. Defense & Foreign Affairs. Washington, D.C.: Copley & Associates, 1979.

Dyfyniad MLA

Copley, Gregory R. Defense & Foreign Affairs. Copley & Associates, 1979.

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