00325nam a2200121 a 450000500170000008200130001710000180003024500300004826000320007830000270011049000280013763000380016520251202164128.0  a004bBIN  aBingham, John  aMastering data processing  aHong Kong:bMacmillanc1983  axii, 266p.b22 cm.cHB  aMacmillan master series  aData processing, Computer science