Data communications : a user's guide /
Sherman, Kenneth. ,
Data communications : a user's guide / Kenneth Sherman. - 3rd ed.
0131990926
Computer networks.
Data transmission systems.
TK5105.5 / .S43 1990
Data communications : a user's guide / Kenneth Sherman. - 3rd ed.
0131990926
Computer networks.
Data transmission systems.
TK5105.5 / .S43 1990