TY  - BOOK
AU  - Frenzel, Louis E.
AU  - xx, 686 p.
AU  - Fegan, Sophia Chung.
AU  - Title
TI  - Communication electronics
SN  - 9780071183048
PY  - 2001///
CY  - New York 
PB  - Glencoe
KW  - Computer networks
KW  - Data transmission systems
N1  - Include bibliographical references and indexs
ER  -