Davies, George Neville. Cost and benefit of fluoride in the prevention of dental caries / by G.N. Davies. - Geneva : World Health Organization, 1974. - WHO offset publication ; no. 9 . Includes bibliographical references. ISBN: 20.00F LCCN: 75326886 //r85 Nat. Bib. No.: Sw*** Subjects--Topical Terms: Preventive dentistry -- Economic aspects.--Preventive dentistry -- Economic aspects.Fluorides -- Therapeutic use.--Fluorides -- Therapeutic use.Dental caries -- Prevention.--Dental caries -- Prevention. LC Class. No.: RK60.7 / .D38 Dewey Class. No.: 614.5/996