TY  - BOOK
AU  - Kennedy,George
TI  - Electronic communication systems
SN  - 0070340528
AV  - TK5101 .K39 1977
U1  - 621.38 
PY  - 1977///
CY  - New York
PB  - Gregg Division, McGraw-Hill
KW  - Telecommunication
N1  - Includes bibliographical references and index
ER  -