TY  - GEN
AU  - World Health Organization,
TI  - Guridelines For Drinking Water Qualiry Vol.3: Surveillance & Control Of Community Supplies
U1  - 616.61/SUR 
PY  - 1999///
CY  - Delhi
PB  - A.I.T.B.S Publishers &Distributors
KW  - Medical Science
ER  -