Dyfyniad APA

Orr, F. (1992). Study skills for successful students. North Sydney: Allen and Unwin.

Dyfyniad Arddull Chicago

Orr, Fred. Study Skills for Successful Students. North Sydney: Allen and Unwin, 1992.

Dyfyniad MLA

Orr, Fred. Study Skills for Successful Students. North Sydney: Allen and Unwin, 1992.

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