TY  - BOOK
AU  - Couch, Leon W.
TI  - DIGITAL AND ANALOG COMMUNICATION SYSTEMS
SN  - 0023253916
U1  - 621.380413 
PY  - 1990///
CY  - New York
PB  - Macmillan
KW  - Telecommunication Systems
KW  - Digital Communications
ER  -