Using information technology : a practical introduction to computers & communications /
Williams, Brian K.,1938-
Sawyer, Stacey C.
Hutchinson, Sarah E.
Boston ; London : Irwin/McGraw-Hill,
c1999.
Previous ed.: Chicago : London: Irwin, 1997.
Includes bibliographical references (p. 595-601) and index.
Computers.
Telecommunication systems.
Information technology.