000 00321nam a2200133Ia 4500
008 220201s2000 xx 000 0 eng d
082 _a613
_bRAT
100 _aRatan, Vidya
245 0 _aViva of Preventive and social medicine
250 _a4
260 _aNew Delhi
_bJaypee
_c2000
300 _a143
942 _2ddc
_cREF
999 _c63861
_d63861