000 00301nam a2200133 4500
020 _a0273018876
082 _a001.6
_bHAR-D
100 _aHarrison, David
245 _aData processing
_b: a first course
260 _aLondon
_bPitman
_c1983
300 _a147p.
650 _aData processing
942 _cBK
999 _c5355
_d5355