Dyfyniad APA

Bee, H. (1989). The developing child (5th.). Harper & Row, Publishers.

Dyfyniad Arddull Chicago

Bee, Hellen. The Developing Child. 5th. New York: Harper & Row, Publishers, 1989.

Dyfyniad MLA

Bee, Hellen. The Developing Child. 5th. Harper & Row, Publishers, 1989.

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