Forouzan, Behrouz A. Data communications and networking / Behrouz A. Forouzan - 5th ed. - New Delhi : Tata McGraw-Hill Publishing Company Limited, 2013. - xxxvii, 1226 p. ; ill. 22 cm. include index ISBN: 9781259064753 1259064751 Subjects--Topical Terms: Applied physicsElectronic engineeringComputers Subjects--Index Terms: Physical layer Dewey Class. No.: 621.38195