TY  - BOOK
AU  - Sheppard, P.M.
TI  - Natural selection and heredity: P.M. Sheppard
U1  - 575.1 
PY  - 1967///
CY  - London
PB  - Hutchinson University Library
KW  - Genetics
KW  - Evolution (biology)
KW  - Heredity
ER  -