TY  - BOOK
AU  - Couch, Leon W.
TI  - Digital and Analog Communication Systems 
SN  - 0023253916
U1  - 621.382 
PY  - 1987///
CY  - New York : 
PB  - Macmillan Publishing, 
KW  - Digital Communications
KW  - Telecommunication Systems
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-02-325391-6.pdf
ER  -