TY  - BOOK
AU  - Hughes, Larry
TI  - Data communications  
SN  - 9780079098726
U1  - 004.6 HUG 
PY  - 1992///
CY  - New York 
PB  - : McGraw-Hill
KW  - Computer networks
KW  - Larry Hughes
KW  - Data transmission systems
KW  - Communications software
KW  - Data communications
ER  -