TY  - BOOK
AU  - Douglas L. Vermillion.
ED  - ODI-IIMI.
TI  - Second Approximations: Unplanned Farmer's Contributions to Irrigation Design
PY  - 1989///
CY  - ODI-IIMI
KW  - IRRIGATION
KW  - IRRIG
KW  - Planning and Design
KW  - Sri Lanka
ER  -