TY  - BOOK
AU  - Couch,Leon W.
TI  - Digital and analog communication systems
SN  - 8178083280
U1  - 621.382 19
PY  - 2005///
CY  - Delhi
PB  - Pearson education
KW  - Telecommunications systems
KW  - Digital communications
N1  - Includes indexes
ER  -