Natural fluoride content of communal water supplies in the United States.

  • United States. Division of Dental Public Health.
Date:
[1959]
Catalogue details

Licence: Public Domain Mark

Credit: Natural fluoride content of communal water supplies in the United States. Source: Wellcome Collection.

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    THE ROYAL SOCIETY for the Prometion OF HEALTH LIBRARY ~~ Natural ~— Kluoride Content OF COMMUNAL Water Supplies IN THE UNITED STATES U. S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE Puklic Health Service