Dyfyniad APA

Hurlock, E. B. (1955). Adolescent development (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Hurlock, Elizabeth Bergner. Adolescent Development. 2nd ed. New York: McGraw-Hill, 1955.

Dyfyniad MLA

Hurlock, Elizabeth Bergner. Adolescent Development. 2nd ed. McGraw-Hill, 1955.

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