Unknown Author
John H. Timothy Winneberger
Alfredo Ribeiro da Costa
Gerry Hartigan
United States. General Accounting Office
David E. Hill
Shaun M. Wicklein
National Standards Authority of Ireland.
Bradley G. Waller
Kaustine Company
R. Dodge Woodson
Karen Mancl
Washington (State). Dept. of Social and Health Services. Water Supply and Waste Section.
United States. Public Health Service.
World Health Organization (WHO)
Reuben Ernest Selfridge