Held, Gilbert, 1943-
Data communications : a comprehensive approach / Gilbert Held, Ray Sarch. - 2nd ed. - New York, N.Y. : McGraw-Hill Information Service, c1989. - xix, 539 p. : ill. ; 24 cm.
Includes bibliography and index.
88032596
Data transmission systems.
TK5105 / .H425 1989
384.3 / HED
Data communications : a comprehensive approach / Gilbert Held, Ray Sarch. - 2nd ed. - New York, N.Y. : McGraw-Hill Information Service, c1989. - xix, 539 p. : ill. ; 24 cm.
Includes bibliography and index.
88032596
Data transmission systems.
TK5105 / .H425 1989
384.3 / HED