Thornburg, H. D. (1982). Development in adolescence (2nd.ed.). Brooks/Cole.
Chicago-viite (17. p.)Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Monterey: Brooks/Cole, 1982.
MLA-viite (9. p.)Thornburg, Hersel D. Development in Adolescence. 2nd.ed. Brooks/Cole, 1982.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.