TY  - BOOK
AU  - Trivedi; R.N.
TI  - A Textbook Of Environmental Sciences
SN  - 81-7488-544-7
U1  - 574.5 T 
PY  - 1997///
CY  - New Delhi
PB  - Anmol Publications Pvt. Ltd.
KW  - Environmental Studies
ER  -