共 7 条
[1]
BORGATTA EF, 1958, SOCIAL PSYCHOL FACTO, V5, P1087
[2]
FERBER R, 1955, J AM STAT ASSOC, V50, P788
[3]
FREEDMAN R, 1959, FAMILY PLANNING STER, P469
[5]
POTI SJ, 1961, IN PRESS P C RES FAM
[6]
WESTOFF CF, 1961, IN PRESS FAMILY GROW