Darmadasa, K. N. O
ඛාදනය [Text - Sinhala] = Khadanaya Darmadasa, K. N. O - Baththaramulla Department of Cultural Affairs 1998 - viii, 37 p. ill. 21 cm.
9789559399438
Erosion
Geology
Hydrology
Meteorology
551.302 / DES
ඛාදනය [Text - Sinhala] = Khadanaya Darmadasa, K. N. O - Baththaramulla Department of Cultural Affairs 1998 - viii, 37 p. ill. 21 cm.
9789559399438
Erosion
Geology
Hydrology
Meteorology
551.302 / DES