000 00271nam a2200109Ia 4500
008 211209s1984 xx 000 0 und d
041 _aeng
100 _aWALKER, ROGER S
245 _aUNDERSTANDING COMPUTER SCIENCE
250 _a2 ed.
260 _bTEXAS INSTRUMENT
_c1984
999 _c100309
_d100309