TY  - BOOK
AU  - Tyagi, O. D.
TI  - A textbook of environmental chemistry / 
SN  - 8126128003
U1  - 577.14 TYA M  
PY  - 2006///.
CY  - New Delhi : 
PB  - Anmol Publications Pvt. Ltd., 
KW  - Environmental chemistry
KW  - Chemical toxicology
KW  - Water pollution
ER  -