00997nac a22002651u 4500 88060044 0672272709 (pbk.) : 8120310802 621.382 F9117 746 746 20080729 Understanding data communications / written by George E. Friend ... [et al.] ; with contributions by Gerald Luecke, managing editor, Charles W. Battle, editor. 4th ed. / revised by Gilbert Held. New Delhi : Prentice Hall of India, c1996. 435 p. : ill. ; 23 cm. Includes index. Bibliography: p. 283. Data transmission systems. Friend, George E. Luecke, Gerald. Battle, Charles W. Held, Gilbert, 1943- BB 621.382F9117 746 746 0 0 ddc 0 0 MAIN MAIN 1ST 2006-07-26 purchase 70.00 0 621.382 UND 000003845 2025-07-15 00:00:00 87.50 BB