TY  - GEN
AU  - Frenzel, Louis E.
TI  - Communication electronics
SN  - 0070582300
AV  - TK7816 
U1  - 621.38/0413 19
PY  - 1989///
CY  - New York
PB  - McGraw-Hill
KW  - Electronics
KW  - Telecommunication
N1  - Includes index
ER  -