TY  - BOOK
AU  - Nichols,J.E.
TI  - Livestock improvment in relation to heredity and environment. 4th ed
U1  - 636.0894 
PY  - 1957///
CY  - London
PB  - Oliver , Boyd.
KW  - Animal Science
KW  - Heredity and Environment
KW  - Livestock
KW  - Veterinary Science
ER  -