000 00287nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aWalraven evan jr
245 0 _aWorking with a slide rule a programed text
260 _bOxford IBH
260 _c1969
365 _b8
942 _cBK
999 _c200528
_d200528