TY  - BOOK
AU  - O.D. Tyagi , M. Mehra
TI  - A Textbook of Enviromental Chemistry
SN  - 8126128003
U1  - 574.1929 
PY  - 2006///
CY  - India
PB  - Anmol
KW  - Not assigned or no longer used
ER  -