TY  - BOOK
AU  - Tripathi, A.K.
AU  - Pandey, S.N.
TI  - Water pollution
SN  - 9788131304716
AV  - TD420.T7 2009 
PY  - 2009///
CY  - New Delhi.
PB  - APH Publishing corporation. 
KW  - Water -- Pollution
ER  -