TY  - BOOK
AU  - Couch, Leon W.
TI  - Digital and analog communication systems / 
SN  - 9780273774211 (pbk. : int. ed.)
U1  - 384 
PY  - 2013///
CY  - Harlow : 
PB  - Pearson, 
KW  - Digital communications
KW  - Telecommunication systems
ER  -