TY  - GEN
AU  - Shaner, W.W
AU  - Philipp, P.F
AU  - Schmehl, W.R
TI  - Readings in farming systems research and development
U1  - 631.5 
PY  - 1981///
CY  - Washington, D.C.
PB  - USAID
KW  - AGRICULTURE
KW  - CULTIVATION
KW  - FARMING SYSTEMS
KW  - Prof.S.Subasinghe collection
ER  -