000 00356nam a2200157Ia 4500
008 190201s9999 xx 000 0 und d
020 _a45078012951
082 _a371
082 _b39445
100 _a"Willis, Jerry W"
245 0 _aComputer Teaching & Lear
260 _aOregon
260 _bDilithium Press
260 _c1983
300 _a"xii, 257"
999 _c26463
_d26463