000 00346nam a2200145Ia 4500
020 _a9695050549
082 _b2137
_a001.642
100 _a"Heathcote, P.M."
245 0 _aA- Level Computing
260 _bSunrise Publications
_aKarachi
_c2000
300 _a385
944 _cTR
999 _c630707
_d630707