TY  - BOOK
AU  - Darmadasa, K. N. O
TI  - ඛාදනය
SN  - 9789559399438
U1  - 551.302 
PY  - 1998///
CY  - Baththaramulla
PB  - Department of Cultural Affairs
KW  - Erosion
KW  - Geology
KW  - Hydrology
KW  - Meteorology
ER  -