Cita APA (7a ed.)

National Research Council. USA & Hayes, C. D. (1987). Risking the future: Adolescent sexuality, pregnancy, and childbearing. National Academy Press.

Cita Chicago Style (17a ed.)

National Research Council. USA y Cheryl D. Hayes. Risking the Future: Adolescent Sexuality, Pregnancy, and Childbearing. Washington, D.C: National Academy Press, 1987.

Cita MLA (9a ed.)

National Research Council. USA y Cheryl D. Hayes. Risking the Future: Adolescent Sexuality, Pregnancy, and Childbearing. National Academy Press, 1987.