Clark, D. W. (1981). Preventive and community medicine (2ª ed.). Little, Brown.
Chicago Style (17th ed.) CitationClark, Duncan W. Preventive and Community Medicine. 2ª ed. Little, Brown, 1981.
MLA citiranjeClark, Duncan W. Preventive and Community Medicine. 2ª ed. Little, Brown, 1981.
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