TY  - BOOK
AU  - William.L, Schweber
TI  - Data Communications
SN  - 0-07-001097-8
U1  - 004.6 
PY  - 1988///
CY  - New York.
PB  - Clencoe McGraw-Hill
KW  - Error Detection, Correction and Data Security
KW  - Test Techniques and Instrumentation
KW  - Communications Media and Problems
ER  -