004.6
F727D
           Forouzan, Behrouz A
               Data communications and networking \ Behrouz A Forouzan and Sophia Chung Fegan - 4th ) - New Delhi : Tata McGraw-Hill, 2006.
               xxxiv, 1134p.
                ISBN: 9780070634145

151052
                Subjects: COMPUTER NETWORKS; DATA TRANSMISSION SYSTEMS.