Stiffman, A. R. (1987). Adolescent sexual activity and pregnancy: Socioenvironmental problems, physical health, and mental health. Journal of youth and adolescence, 16(5), .
Chicago-Zitierstil (17. Ausg.)Stiffman, Arlene R. "Adolescent Sexual Activity and Pregnancy: Socioenvironmental Problems, Physical Health, and Mental Health." Journal of Youth and Adolescence 16, no. 5 (1987).
MLA-Zitierstil (9. Ausg.)Stiffman, Arlene R. "Adolescent Sexual Activity and Pregnancy: Socioenvironmental Problems, Physical Health, and Mental Health." Journal of Youth and Adolescence, vol. 16, no. 5, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.