Natural fluoride content of community water supplies, 1969.
|Corporate Author:||National Institutes of Health (U.S.).|
Bethesda, Md., 
Water Supply > Water Supply / United States.
Water > Water / Composition > Water / Composition / United States.
Water-supply > Water-supply / United States.
1959 ed. issued by the Division of Dental Public Health under title: Natural fluoride content of communal water supplies in the United States.
iii, 75 p.
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|Full view||University of Illinois at Urbana-Champaign|