Dyfyniad APA

Langan, J. (2003). Ten Skill You Really Need to Succeed in College. McGraw - HillCompanies, Inc.

Dyfyniad Arddull Chicago

Langan, John. Ten Skill You Really Need to Succeed in College. McGraw - HillCompanies, Inc, 2003.

Dyfyniad MLA

Langan, John. Ten Skill You Really Need to Succeed in College. McGraw - HillCompanies, Inc, 2003.

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