004.6
F727D
           Forouzan, Behrouz A
               Data communications and networking \ Behrouz A Forouzan, Catherine Coombs and Sophia Chung Fegan - 2nd - New Delhi : Tata Mcgraw-Hill, 2003.
               xxxii,944p.
                ISBN: 0-07-049935-7

145380
                Subjects: Data transmission systems; Computer networks.