Held, Gilbert, 1943-
Understanding data communications / Gilbert Held. - 7th ed. - New Delhi : Pearson Education ; c2002. - xv, 765 p. : ill. ; 23 cm.
Includes bibliographical references and index.
9788131708729 0672322161 (alk. paper)
2001089583
Data transmission systems.
Computer networks.
TK5105 / H429 2002
004.6 / HEU
Understanding data communications / Gilbert Held. - 7th ed. - New Delhi : Pearson Education ; c2002. - xv, 765 p. : ill. ; 23 cm.
Includes bibliographical references and index.
9788131708729 0672322161 (alk. paper)
2001089583
Data transmission systems.
Computer networks.
TK5105 / H429 2002
004.6 / HEU