000 00272nam a2200109Ia 4500
008 230222s9999 xx 000 0 und d
100 _aYash Pal Bedi
245 2 _aA Hand Book of Hygiene and Public Health
250 _a11
260 _bAnand Publishing
_c1971
942 _cBK
999 _c31326
_d31326