TY  - JOUR
A1  - Westoff, C.F.
T1  - The changing focus of differential fertility research: the social mobility hypothesis
Y1  - 1953
DO  - 10.2307/3348422
JF  - The Milbank Memorial Fund Quarterly
VL  - 31
IS  - 1
SP  - 24
EP  - -38

ER  -