TY  - GEN
AU  - PANDEY, S.N.
AU  - TRIPATHI, A.K.
TI  - Water pollution
U1  - 363.7394/TRI 
PY  - 1990///
CY  - NEW DELHI
PB  - Ashish Publishing House
N1  - ENVIRONMENTAL PROBLEMS; RESEARCH AND ANALYSIS; WATER POLLUTION
ER  -