Dyfyniad APA

Warren, S. (1964). President as world leader. Scientific book agency.

Dyfyniad Arddull Chicago

Warren, Sidney. President as World Leader. Calcutta: Scientific book agency, 1964.

Dyfyniad MLA

Warren, Sidney. President as World Leader. Scientific book agency, 1964.

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