TY  - BOOK
AU  - Swarup, R., Mishra, S.N. and Jauhari, V.P.
TI  - Encyclopaedia of ecology , environment and pollution control: environmental water pollution and its control
SN  - 817099375X
U1  - 577.03 
PY  - 1992///
CY  - New Delhi
PB  - Mittal publications
KW  - Ecology & environment-encyclopaedia
KW  - Encyclopaedia
ER  -