john , joseph . textbook of preventive and community dentistry . [[Book] /] joseph john . - 1st.ed. - new dlhi : cbs publisher & distributors, 2003. - 292 p. ; 24cm. includes index . All age. ISBN: 8123910207 Subjects--Topical Terms: Dental public health. . Dewey Class. No.: 617.6 National Library of Medicine Call No.: / J T