000 00311nam a2200109Ia 45e0
008 181001s1971 xx 000 0 und d
100 _aSinghal R.P.
245 2 _aA text book on sanitary engineering
260 _aRoorkee
_bSneghel
_c1971
300 _a1000
942 _2ddc
_cBK
999 _c1994
_d1994