TY  - BOOK
AU  - Porter, Valerie
TI  - Pigs: a handbook to the breeds of the world 
SN  - 1873403178
U1  - 636.4 
PY  - 1993///
CY  - Mountfield
PB  - Helm Information Ltd., 
KW  - Swine breeds
KW  - Swine
KW  - Breeding
N1  - Includes index
ER  -