000 00274nam a2200097Ia 4500
008 220201s9999 xx 000 0 eng d
100 _aBUREAU OF INDIAN STANDARD
245 0 _aLOCATION OPERATION & MAINTINANCE OF TUBE.BORE WELLS
260 _bBUREAU OF INDIA ST.
942 _2ddc
999 _c98430
_d98430