RATAN, V . HAND BOOK OF PREVENTIVE & SOCIAL MEDICINE / Textual Documents NULL. - 9 ED/ . - NULL : JAYPEE BROTHERS MEDICAL PUB. , 2007. - 376 : : XVI ; ; A4 . + PB. PSM ISBN: 8171793800 Subjects--Index Terms: PREVENTIVE SOCIAL MEDICINE Dewey Class. No.: 614 / RAT