TY - BOOK AU - Durfor,Charles N. AU - Becker,Edith TI - Public water supplies of the 100 largest cities in the United States, 1962 AV - TC801 .U2 no. 1812 PY - 1964/// CY - Washington PB - U.S. Govt. Print. Off. KW - Water-supply KW - United States KW - Water KW - Composition KW - Purification N1 - Bibliography: p. 81-83 ER -