TY  - GEN
AU  - Chhatwal,G.R.
TI  - Dictionary of environmental chemistry 
SN  - 8170412986
U1  - 540.03 
PY  - 1990///
CY  - New Delhi
PB  - Anmol Publications, 
KW  - Chemistry and allied sciences
KW  - Dictionaries
ER  -