TY  - BOOK
AU  - Swarup, r
AU  - Mishra,s n
AU  - Jauhari, v a
TI  - Encyclopedia of ecology, environment & pollution control (in 20 volumes)
SN  - 817099361X
U1  - 577 
PY  - 1992///
CY  - New delhi
PB  - Mittal
KW  - Environmental Water Pollution and its Control
ER  -