Dyfyniad APA

The Century Foundation/Twentieth Century Fund. (1998). Foreign Affairs. The Century Foundation/Twentieth Century Fund.

Dyfyniad Arddull Chicago

The Century Foundation/Twentieth Century Fund. Foreign Affairs. New York: The Century Foundation/Twentieth Century Fund, 1998.

Dyfyniad MLA

The Century Foundation/Twentieth Century Fund. Foreign Affairs. The Century Foundation/Twentieth Century Fund, 1998.

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