Periodic review 1999 : DWI consumer consultation : report on research findings.
Creative Research (Firm)
Great Britain.Drinking Water Inspectorate.
Great Britain.Central Office of Information.
[London] : COI,
1998.
Prepared for Central Office of Information on behalf of their clients the Drinking Water Inspectorate -- Prepared by Creative Research.
"4 June 1998"
"COI ref: RS 3969"