Dyfyniad APA

Seifert, K. (2000). Child and adolescent development (5th ed.). Boston: Houghton Mifflin.

Dyfyniad Arddull Chicago

Seifert, Kelvin. Child and Adolescent Development. 5th ed. Boston: Houghton Mifflin, 2000.

Dyfyniad MLA

Seifert, Kelvin. Child and Adolescent Development. 5th ed. Boston: Houghton Mifflin, 2000.

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