PARK, K . PARK`S TEXT BOOK OF PREVENTIVE & SOCIAL MEDICINE / Textual Documents NULL. - 19 ED/ . - NULL : BANARSIDAS BHANOT JABALPUR M. P. , 2007. - 768 : : XVI ; ; A4 . + HB. PSM ISBN: Subjects--Index Terms: PREVENTIVE SOCIAL MEDICINE Dewey Class. No.: 614 / PAR