TY  - BOOK
AU  - Shelly, Gary B ; Cashman, Thomas J  & Serwatka, Judy A
TI  - Business data communications: introductory concepts and techniques
SN  - 0-7895-5958-7
U1  - 004.6 She 
PY  - 2001///
CY  - Thomson Learning, Boston
KW  - Computer Science
ER  -