Columbia subject headings:
Illegitimacy--United States.
Premarital sex--United States.
Teenage marriage--United States.
Teenage pregnancy--United States.
Youth--Sexual behavior--United States.
Harvard subject headings:
Illegitimacy--United States.
Illegitimate children--United States.
Premarital sex--United States.
Teenage marriage--United States.
Teenage pregnancy--United States
Youth--Sexual behavior--United States
Youth--Sexual behavior--United States.
Princeton subject headings:
Illegitimacy--United States.
Pregnant teenagers--United States.
Premarital sex--United States.
Teenage marriage--United States.
Youth--Sexual behavior--United States.