TY  - BOOK
AU  - Tyagi, O.D.
AU  - Mehra, M.
TI  - A Text book of Environmental Chemistry
SN  - 81-7041-352-4
U1  - 540 
PY  - 1990///
CY  - New Delhi
PB  - Anomol Publications
KW  - Environmental Chemistry
KW  - Chandrens'  Literature
ER  -