TY  - BOOK
AU  - Ranawaara, N. F. C.
AU  - Gunasena H. P. C.
TI  - Changing Agriculture  Opportunities: The Role of Farming System Approaches
AV  - S 494.5 .C 53 1998
PY  - 1998///
CY  - Rome
PB  - Fao
KW  -  Farming System Approaches
ER  -