TY  - BOOK
AU  - Haines, Michael
TI  - Introduction to Farming Systems
SN  - 0582450810
U1  - 338.10941 
PY  - 1982///
CY  - London
PB  - Longman
KW  - Economics
KW  - Social sciences
KW  - Agricultural systems
KW  - Great Britain
ER  -