共 16 条
[1]
BLAKE J, 1968, POP STUD-J DEMOG, V22, P5, DOI 10.1080/00324728.1968.10405523
[3]
CAMPBELL AA, WELFARE REV, V5, P1
[4]
ILLEGITIMACY AND THE SOCIAL STRUCTURE
[J].
AMERICAN JOURNAL OF SOCIOLOGY,
1939, 45 (02)
:215-233
[7]
EARLY MARRIAGE - PREMARITAL PREGNANCY AND ASSOCIATED FACTORS
[J].
JOURNAL OF MARRIAGE AND THE FAMILY,
1965, 27 (01)
:48-56
[8]
LUNDE AS, 1963, HEW INDICATORS, P23
[9]
*NAT CTR HLTH STAT, 1967, 11 ADV REP FIN NAT S, V15, P2
[10]
*NAT CTR HLTH STAT, 1962, 21 NAT STAT AN US 1, P45