TY  - BOOK
AU  - Burt Cyril
TI  - Intelligence and fertility: the effect of the differential birthrate on inborn mental characteristics
U1  - 136.31 
PY  - 1946///
CY  - London
PB  - Eugenics Society
KW  - Differential Psychology
KW  - Evolutional psychology
KW  - Fertility
KW  - Intelligence
KW  - Psychology
ER  -