TY  - BOOK
AU  - Perry, Graham 
TI  - Welfare of the laying hen: :Papers from the 27th Poultry Science Symposium of the World's Poultry Science Association (UK Branch), Bristol, UK, July 2003
SN  - 9780851998138
U1  - 636.514 2 
PY  - 2003///
PB  - CAB International
ER  -