Understanding data communications /
Held, Gilbert
Understanding data communications / Gilbert Held. - 3rd ed. - Manila : SAMS, c1991. - ix, 368 p. : figs. and tables ; 22 cm.
Includes bibliographical references, glossary and index.
971-8613-69-2 0-672-30005-2
Data communications--Data in computer systems
005.71 H474 1991
Understanding data communications / Gilbert Held. - 3rd ed. - Manila : SAMS, c1991. - ix, 368 p. : figs. and tables ; 22 cm.
Includes bibliographical references, glossary and index.
971-8613-69-2 0-672-30005-2
Data communications--Data in computer systems
005.71 H474 1991