Forouzan, Behrouz A. Data communications and networking / Behrouz A. Forouzan. - 4th ed. - New Delhi: Tata McGraw-Hill, c2011-12. - xxxii, 1118p.: ill.;, figs.;, tables.; 21 cm. Includes index. Dept. of CSE ISBN: 9780070634145 00706341449 Subjects--Topical Terms: Physical layer and media Dewey Class. No.: 004.6 / FOD