TY  - BOOK
AU  - Shelly, Garry B.
AU  - Cashman, Thomas J.
TI  - Business data communications: introductory concepts and techniques
SN  - 0789542870
AV  - HF5721 .Sh3 1998
PY  - 1998///
CY  - London
PB  - Course Technology
N1  - Includes index
ER  -