TY  - BOOK
AU  - Bleazard,G.B
AU  - 
TI  - Handbook of data communications
SN  - 0-85012-363-1
U1  - 621.39(02) 
PY  - 1984///
CY  - New Delhi
PB  - Bookmen Associates
KW  - Data transmission systems
KW  - Computer network
ER  -