8 Planned Parenthood Federation of America. Three Rivers Press. 9 Planned Parenthood Federation of America. When They Should Know It. 10 Barnett, B. 1997.
Education protects health, delays sex.
Communicating with Parents First. 12 Cross, R.J. 1991. Helping Adolescents Learn about Sexuality. 13 Calderone, M. S. and J.W . Talking with Your Child about Sex .