Thornburg, H. D. (1982). Development in adolescence (2nd.ed.). Brooks/Cole.
Cita Chicago (17th ed.)Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Monterey: Brooks/Cole, 1982.
Cita MLA (9th ed.)Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Brooks/Cole, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.