000 00295nam a2200121Ia 4500
001 123207
008 170722s9999 xx 000 0 und d
100 _aLeeson, Daniel N.
245 _aBasic programming concepts and the IBM 1620 computer /
250 _a2nd ed.
260 _c1968
942 _cGEN
999 _c5972
_d5972