TY  - GEN
AU  - Samarasinghe , Wimaladasa
TI  - සජීවී පරිසරය
SN  - 9559060015
U1  - 333.7 
PY  - 1989///
CY  - Colombo
PB  - Pahan Prakashana
KW  - ENVIRONMENT
KW  - NATURAL RESOURCES
ER  -