TY  - BOOK
AU  - Couch, Leon W.
TI  - Digital and analog communication systems
SN  - 978933251858
AV  - 22696-22700 
U1  - 621.382 22
PY  - 2014///
CY  - New Delhi
PB  - Pearson Education
N1  - Includes bibliographical references and index
ER  -