000 00312nam a2200121Ia 4500
008 220809s9999 xx 000 0 und d
041 _aeng
100 _aGupta
245 _aText book of PSM
260 _bElesevier Publications
650 _aCommunity Medicine (614.44)
650 _aCommunity Medicine (614.44)
999 _c155577
_d155577