TY  - BOOK
AU  - IRRI
TI  - Symposium on Cropping Systems Research and  Development for the Asian Rice Farmer / 
U1  - 633.18 
PY  - 1977///
CY  - .- Philippines
PB  - : IRRI
KW  - Technology (Applied Sciences)
KW  - Agriculture and Related Technologies
KW  - Cropping Systems
KW  - Rice
ER  -