TY  - BOOK
AU  - Tripathy,S.N, Panda, Sunakar
AU  - x
TI  - Fundamentals of environmental studies: x
SN  - 8187125888
U1  - 628/T835f 
PY  - 1999///
CY  - Delhi
PB  - Vrinda pub
KW  - Environment
N1  - Includes
ER  -