000 00313nam a2200121Ia 4500
008 210804s2011||||xx |||||||||||||| ||und||
041 _aeng
100 _aPark K
245 0 _aPark's textbook of preventive and social medicine
250 _a21 Ed.
260 _aJabalpur
_bM/s banarsidas bhanot
_c2011
942 _cBK
999 _c13030
_d13030