Forouzan, Behrouz Introduction to data communications and networking / Behrouz Forouzan, Catherine Coombs and Sophia Chung Fegan - Boston : WCB/ McGraw-Hill, c1998. - xix, 714 p. ; ill. ; 24 cm. ISBN: 007111157107 LCCN: Subjects--Topical Terms: Data transmission systems.Computer networks. LC Class. No.: TK5105 / .F6617 1998 Dewey Class. No.: 004.6 / F692i