PakCat catalogue record Computers, communications, and information a user's introduction : comprehensive version By Hutchinson, Sarah E. Bibliographic details ISBN0072297441 PublisherMcGraw-Hill Publication placeBoston Publication year2000 Edition7th ed. LanguageEnglish Material typeBook Physical descriptionvarious p. Additional authorsSawyer, Stacey SubjectsTelecommunication systems, Information technology