TY  - BOOK
AU  - Bent, Martin
AU  - Bent, Martin (ed.)
TI  - Livestock productivity enhancers: : an economic assessment
SN  - 0851988008
U1  - 636.08926 
PY  - 1993///
CY  - London
PB  - C.A.B International
KW  - Live stock-Economic aspects
KW  - Live stock-Productivity
N1  - Includes index
ER  -