TY  - JOUR
A1  - Guo, G.
A1  - VanWey, L.K. 
T1  - Sibship size and intellectual development: is the relationship causal?
Y1  - 1999
DO  - 10.2307/2657524
JF  - American Sociological Review 
VL  - 64
IS  - 2
SP  - 169
EP  - -187

ER  -