000 00295nam a2200097Ia 4500
008 220729s1992 xx 000 0 und d
041 _aeng
100 _aMahajan Gupta
245 _aText book of preventive and social medicine
260 _aNew Delhi
_bJaypee Brothers Medical Publisher (P) Ltd
_c1992
999 _c129669
_d129669