Dyfyniad APA

Thornburg, H. D. (1982). Development in adolescence (2nd.ed.). Brooks/Cole.

Dyfyniad Arddull Chicago

Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Monterey: Brooks/Cole, 1982.

Dyfyniad MLA

Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Brooks/Cole, 1982.

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