000			00370nam a2200169Ia 4500
003			0STCL
008			150530s9999 xx 000 0 und d
040			_aSTCL _cSTCL
100			_aThurston, H.A.
245			_aNumber system
250			_aFirst
260			_bInterscience _c1956
546			_aEnglish
942			_2ddc _cBK
999			_c21659 _d21659
005			20220125165924.0