00339nam a22001097a 4500020001500000040000900015082001700024100001600041245006600057260004000123650006600163  a0766801175  cNust  a621.382bAJA  aAisha Ajayi  aPocket guide to telecommunication and information technology   aNew York:bDelmar publisher,c1999.  aPocket guide to telecommunication and information technology