TY  - BOOK
AU  - Sankaran Unni, K
AU  - 
TI  - Paristhiti vijnanathinte moola tatvangal
U1  - 577.4=M 
PY  - 1974///
CY  - Trivandrum
PB  - State Institute of Languages
KW  - Ecology
KW  - Environment
KW  - Biology
KW  - Environment management
KW  - Environmental sciences
ER  -