Stallings, William.
Data and computer communications. - New Jersey : Prentice Hall, 1997. - 5th ed. 798p., index, references, glossary. ; cm.
0135712742
Computer Communications--Data.
TK5105.S782
Data and computer communications. - New Jersey : Prentice Hall, 1997. - 5th ed. 798p., index, references, glossary. ; cm.
0135712742
Computer Communications--Data.
TK5105.S782