共 20 条
[2]
ANDERSON JE, 1982, NUMBER BIRTHS COLLEC
[3]
ANDERSON JE, 1982 CTR DIS CONTR D
[4]
ANDERSON JE, 1982, MULTIVARIATE ANAL CU
[6]
FERRY B, 1983, WFS COMP STUDIES CRO, V23
[7]
FERRY B, 1980, WFS13 COMP STUD CROS
[8]
GOLDBERG H, 1984, POPULATION STUDIES
[9]
HENDERSHOT GE, 1980, ADV DATA, V59
[10]
HIRSCHMAN C, 1979, VITAL HLTH STATISTIC, V23