TY  - BOOK
AU  - Helfrick,Albert D.
TI  - Modern aviation electronics
SN  - 0135877660
AV  - TL695 .H44 1984
U1  - 629.135/5 19
PY  - 1984///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall
KW  - Avionics
N1  - Includes index
ER  -