TY  - BOOK
AU  - Duck, Michael
AU  - Read, Richard
TI  - Data communications for engineers
SN  - 0201427885
AV  - TK 5105.5 Duc 
PY  - 1996///
CY  - Harlow
PB  - Addison-Wesley
KW  - DATA TRANSMISSION SYSTEMS
KW  - COMPUTER NETWORKS
ER  -