TY  - BOOK
AU  - Perera, H. D. B. S. 
AU  - Vidanage, S. P. 
TI  - Multiple Benefits of small irrigation Tanks and their Economic Value: A case study in the Kala oya Basin, sri lanka
SN  - 9558177377
PY  - 2005///
CY  - Colombo
PB  - IUCN Sri Lanka Country Office
KW  - Occasional Papers
ER  -