TY  - GEN
AU  - Bramson A E
AU  - Birch,N.H.
TI  - Radio navigation for pilots / 
SN  - 8428313512
AV  - TL695 
U1  - 629.1351  
PY  - 1985///
CY  - Madrid
PB  - Paraninfo
KW  - Radio in navigation
KW  - Instrument flying
KW  - Airplanes
KW  - Radio equipment
N1  - Previous ed.: 1979
ER  -