TY  - BOOK
AU  - Royal, G. D. P.
TI  - Analysis of the spatial variation of drinking water availability in Nilwala river basin using geographic information system
U1  - 910.285072 
PY  - 2014///
KW  - Geographic information system research . nater availability
N1  - Thesis submitted to the University of Sri Jayawardanapura for award of the degree of master of science in geographic information and remote sensing
ER  -