National Research Council (U.S.). Panel on Adolescent Pregnancy and Childbearing, ebrary, Inc, & Hayes, C. D. (1987). Risking the future: Adolescent sexuality, pregnancy, and childbearing. National Academy Press.
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Dyfyniad Arddull Chicago
National Research Council (U.S.). Panel on Adolescent Pregnancy and Childbearing, Inc ebrary, and Cheryl D. Hayes. Risking the Future: Adolescent Sexuality, Pregnancy, and Childbearing. Washington, D.C.: National Academy Press, 1987.
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Dyfyniad MLA
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.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.