National Research Council (U.S.). Panel on Adolescent Pregnancy and Childbearing, Hofferth, S. L., & Hayes, C. D. (1987). Risking the future: Adolescent sexuality, pregnancy, and childbearing. National Academy Press.
Cita Chicago Style (17a ed.)National Research Council (U.S.). Panel on Adolescent Pregnancy and Childbearing, Sandra L. Hofferth, y Cheryl D. Hayes. Risking the Future: Adolescent Sexuality, Pregnancy, and Childbearing. Washington, D.C.: National Academy Press, 1987.
Cita MLA (8a ed.)National Research Council (U.S.). Panel on Adolescent Pregnancy and Childbearing, et al. Risking the Future: Adolescent Sexuality, Pregnancy, and Childbearing. National Academy Press, 1987.
Precaución: Estas citas no son 100% exactas.