TY  - BOOK
AU  - Cannon,Don L.
AU  - Luecke,Gerald
TI  - Understanding communications systems
SN  - 0895120356 (pbk.)
PY  - 1980///
CY  - Dallas, Tex. : 
PB  - Texas Instruments Learning Center, 
KW  - Telecommunication
N1  - Includes index
ER  -