Dyfyniad APA

Steinberg, L. D. (2005). Adolescence (7th ed.). McGraw-Hill Higher Education.

Dyfyniad Arddull Chicago

Steinberg, Laurence D. Adolescence. 7th ed. Boston, Mass.: McGraw-Hill Higher Education, 2005.

Dyfyniad MLA

Steinberg, Laurence D. Adolescence. 7th ed. McGraw-Hill Higher Education, 2005.

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