TY  - BOOK
AU  - Couch, II, Leon W.
TI  - Digital and analog communication systems
SN  - 0131424920
U1  - 621.382 
PY  - 2007///
CY  - Upper Saddle River, N.J.
PB  - Pearson Education, Inc.
KW  - Digital  communications
KW  - Telecommunication systems
N1  - PR
ER  -