TY  - BOOK
AU  - Sheppard, P. M.
TI  - Natural Selection And Heredity
U1  - 575.13 
PY  - 1960///
CY  - New York
PB  - Harper and Brother, Pub.
KW  - Life sciences
KW  - Pure Sciences
KW  - Heredity
KW  - Natural selection
ER  -