Dyfyniad APA

Bee, H. L. 1. (2000). The developing child (9th ed.). Boston: Allyn and Bacon.

Dyfyniad Arddull Chicago

Bee, Helen L. 1939-. The Developing Child. 9th ed. Boston: Allyn and Bacon, 2000.

Dyfyniad MLA

Bee, Helen L. 1939-. The Developing Child. 9th ed. Boston: Allyn and Bacon, 2000.

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