Dyfyniad APA

Kennedy, P. M. (1994). Preparing for the twenty-first century (First Vintage Books edition.). Vintage Books.

Dyfyniad Arddull Chicago

Kennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. New York: Vintage Books, 1994.

Dyfyniad MLA

Kennedy, Paul M. Preparing for the Twenty-first Century. First Vintage Books edition. Vintage Books, 1994.

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