TY  - GEN
AU  - Kumaragamage , Lenard
TI  - පරිසර පද්ධති
SN  - 9559795805
U1  - 577 
PY  - 2002///
CY  - Maharagama
PB  - Author
KW  - Biology
KW  - Georaphy Enviromental aspects
KW  - Ecology
KW  - Enviromental geography
ER  -