TY  - BOOK
AU  - Helfrick, Albert
TI  - Modern aviation electronics
SN  - 9780130976925
U1  - 629.1355 
PY  - 1994///
CY  - New Jersey
PB  - ; Prentice Hall
KW  - Aerospace Engineering
KW  - Aviation Electronics
KW  - Engineering
ER  -