TY  - BOOK
ED  - Food and Agriculture Organization of the United Nations.
TI  - Farming systems development : : guidelines for the conduct of a tra ining course in farming systems development
SN  - 9251032491
PY  - 1990///
CY  - Rome : 
PB  - Food and Agriculture Organization of the United Nations, 
KW  - Agricultural systems
KW  - Farm management
ER  -