TY  - GEN
AU  - 
AU  - 
ED  - United States.
TI  - Commercial pilot - Airplane written test guide
T2  - Federal aviation administration flight standards service advisory circular (AC), 61-71B
U1  - US 629.132 23rd ed.
PY  - 1977///
CY  - Washsington
PB  - U.S. Department of Transportation
KW  - Aeronautics
KW  - Aeronautics, Commercial
KW  - Air pilots--Licenses
ER  -