_Data and communications[ 4th ed.]
_Data and communications[ 4th ed.]
- New York Macmillan 1994
- xv,875p.
Includes index. Includes index.
24154415
_Data transmission
TK 5105.S73 1994
Includes index. Includes index.
24154415
_Data transmission
TK 5105.S73 1994