TY  - RPRT
TI  - Birth order, family size, and intelligence.
AU  - L Belmont
AU  - F A Marolla
PY  - 1973
DO  - 10.1126/science.182.4117.1096
UR  - https://pubmed.ncbi.nlm.nih.gov/4750607/
ID  - 4750607
ER  -