00310nam a2200121 a 4500008004100000050001600041100001600057245002700073260003600100300002000136350000900156700002300165120416s1989    ||||||||||||||||| ||    u  aTK 5105 Jon  aJones, Hwfa10aInformation technology  aEdinburghbW & W Chambersc1989  aix,177p. : ill.  a0.00  aStananought, Joyce