TY  - BOOK
AU  - Balckwelder Richard E
AU  -  Shepherd Benjamin A
TI  - Diversity of animal reproduction
T2  - A series of books in agricultural sciences
U1  - K:67, M1 
PY  - 1981///
CY  - Boca
PB  - Raton CRC Press       
KW  - Animal Genetics
ER  -