TY  - BOOK
AU  - Cannon, Don, L.
AU  - Luecke, GeraldCannon, Don, L.
TI  - Understanding Communications Systems
SN  - 895121662
AV  - 621.382 CAN 1984 
U1  - 621.382 CAN 1984 
PY  - 1984///
CY  - Dallas Texas
PB  - Texas
KW  - Communication Engineering
ER  -