TY  - BOOK
AU  - Indian Standards Institution[ISI]
TI  - IS:2490-(Pt.9)-1977. Indian standard tolerance limits for industrial effluents discharged in to inland surface waters. Pt.9
U1  - IS CODE 
PY  - 1977///
CY  - New Delhi
PB  - Indian Standards Institution
N1  - ENG
ER  -