000 00310nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.3819642 G778
100 _aGRAY.N.A.B
245 0 _aINTRODUCTION TO COMPUTER SYSTEMS
260 _aAustralia
_bPrentice Hall
_c1987
300 _a24X17
942 _cBK
_2DDC
999 _c21634
_d21634