000			00359nam a2200157Ia 4500
003			0STCL
008			150530s9999 xx 000 0 und d
040			_aSTCL _cSTCL
100			_aEllis John, P.
245			_aTheory and operation of the slide rule
260			_c1961
546			_aEnglish
942			_2ddc _cBK
999			_c24875 _d24875
005			20220125170024.0