TY  - BOOK
AU  - Couch, Leon W.
TI  - Digital and Analog Communication Systems 
SN  - 002946062X
U1  - 621.382 
PY  - 1990///
CY  - London : 
PB  - Macmillan, 
KW  - Digital Communications
KW  - Telecommunication System
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-02-946062-X.pdf
ER  -