TY  - BOOK
AU  - Sheppard P M
TI  - Natural selection and Heredity
T2  - Hutchinson university library : Biological science
U1  - G:61, J8;K7 
PY  - 1967///
CY  - London
PB  - Hutchinson         
KW  -  Heredity
KW  - Biology
ER  -