Dyfyniad APA

Jeffreys, M. (2002). Success secrets of fifteen motivational superstars. Jaico.

Dyfyniad Arddull Chicago

Jeffreys, Michael. Success Secrets of Fifteen Motivational Superstars. Mumbai: Jaico, 2002.

Dyfyniad MLA

Jeffreys, Michael. Success Secrets of Fifteen Motivational Superstars. Jaico, 2002.

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