Dyfyniad APA

Yale University. Yale College programs of study. Bulletin of Yale University.

Dyfyniad Arddull Chicago

Yale University. Yale College Programs of Study. New Haven, Conn.: Bulletin of Yale University.

Dyfyniad MLA

Yale University. Yale College Programs of Study. Bulletin of Yale University.

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