TY  - BOOK
AU  - Tripathi,A.K., Panday, S.N.
AU  - x
TI  - Water pollution: x
SN  - 8170242673
U1  - 363.7394/T835w 
PY  - 1990///
CY  - New Delhi
PB  - Ashish Pub.
KW  - Water-Pollution
N1  - Includes
ER  -