TY  - GEN
AU  - Rathnayaka , M.
TI  - ගෝලීය පරිසර  අර්බුද
SN  - 9559608320
U1  - 363.7 
PY  - 2000///
CY  - Matara
PB  - Author
KW  - WATER POLLUTION
KW  - GEOGRAPHY
KW  - ENVIRONMENTAL PROBLEMS
KW  - AIR POLLUTION
KW  - ACID RAIN
ER  -