Dyfyniad APA

KENNEDY, P. (1993). Preparing for the twenty-first century. Random House.

Dyfyniad Arddull Chicago

KENNEDY, Paul. Preparing for the Twenty-first Century. New York: Random House, 1993.

Dyfyniad MLA

KENNEDY, Paul. Preparing for the Twenty-first Century. Random House, 1993.

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