TY  - BOOK
AU  - TRIVEDI R.N
TI  - TEXT BOOK OF ENVIRONMENTAL SCIENCE
SN  - 9788170416821
U1  - 628 
PY  - 1997///
CY  - NEWDELHI
PB  - ANMOL
KW  - "Environmental engineering,Sanitary and Muncipal Engg,Impact assessment"
ER  -