TY  - BOOK
AU  - Couch,Leon W.
TI  - Modern communication systems: principles and applications 
SN  - 0023252863
PY  - 1995///
CY  - New York : 
PB  - Prentice Hall, 
KW  - Digital communications
KW  - Telecommunication systems
N1  - Includes bibliographical references (p. 570-577) and index
ER  -