TY  - BOOK
AU  - Trivedi, P.P.
TI  - Encyclopedia of world environment: pollution v.4. 
SN  - 8176480444
AV  - AE5.T7 1999 
PY  - 1999///
CY  - New Delhi
PB  - A.P.H.
KW  - Encyclopedias and dictionaries - pollution - world environment
ER  -