TY  - BOOK
AU  - Couch, Leon W., 
TI  - Modern communuication systems. / 
SN  - 0-02-325286-3
U1  - 621.382 
PY  - 1994///
CY  - N.Jersey
PB  - Prentic hall
KW  - Communications
KW  - Engineering
N1  - Includes index
ER  -