TY  - BOOK
AU  - PUROHIT, S.S.
AU  - PUROHIT, S.S.,
TI  - A TEXT BOOK OF ENVIRONMENTAL SCIENCE
U1  - 577 PUR 
PY  - 2004///
CY  - DIBRUGARH
PB  - STUDENT EMPORIUM
KW  - Ecology
ER  -