Dyfyniad APA

Ferrett, S. K. (1997). Peak performance: Success in college & beyond (2nd ed.). Irwin Mirror Press.

Dyfyniad Arddull Chicago

Ferrett, Sharon K. Peak Performance: Success in College & Beyond. 2nd ed. Chicago: Irwin Mirror Press, 1997.

Dyfyniad MLA

Ferrett, Sharon K. Peak Performance: Success in College & Beyond. 2nd ed. Irwin Mirror Press, 1997.

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