TY  - BOOK
AU  - Shrader,Rohert L., x
AU  - x
TI  - Electronic communication: x
SN  - 0070571511
U1  - 621.38/S561e 
PY  - 1988///
CY  - New York ; London
PB  - McGraw -Hill
KW  - Electronics
KW  - Radio
N1  - Includes
ER  -