TY  - BOOK
AU  - Indian Standards Institution
TI  - Requirements for Slow Sand Filters: Part - 1 General Guidelines (IS : 11401 (Part 1) - 1985)
U1  - IS : 11401 (Part 1) - 1985 
PY  - 1986///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - IS : 11401 (Part 1) - 1985
ER  -