共 28 条
[1]
AXELROD M, 1963, POPULATION INDEX JAN
[2]
BESHERS JM, 1964, JUN ANN M POP ASS AM
[3]
COALE AJ, 1961, MILBANK MEMORIAL OCT
[4]
COOPER S, 1959, 1242 US BUR LAB STAT, P33
[5]
FREEDMAN D, 1963, POPULATION INDEX OCT
[6]
FREEDMAN R, 1959, FAMILY PLANNING STER, pCH10
[7]
GRABILL WH, UNPUB DERIVATION AGE
[8]
GRABILL WH, 1961, 108 US BUR CENS P20
[9]
KEYFITZ N, 1964, DEMOGRAPHY, V1
[10]
KIRK D, 1960, DEMOGRAPHIC EC CHANG