TY  - JOUR
A1  - Belmont, L.
A1  - Marolla, F.A.
T1  - Birth order, family size, and intelligence
Y1  - 1973
DO  - 10.1126/science.182.4117.1096
JF  - Science
VL  - 182
IS  - 4117
SP  - 1096
EP  - -1101

ER  -