TY  - BOOK
AU  - International Crop Research Institute for the Semi-Arid Tropics,
TI  - Farming Systems Principles
SN  - 9290661151
U1  - 630 
PY  - 1986///
CY  - Andhra Pradesh
PB  - International Crop Research Institute for the Semi-Arid Tropics
KW  - Agriculture. & related technologies
KW  - Farming Systems
ER  -