TY  - BOOK
TI  - Pan American Navigation Service
U1  - 629.13254 
PY  - 0000///[199?]
CY  - California : 
PB  - Pan American Navigation Service, Inc., 
KW  - Aeronautics--study and teaching
KW  - Airplanes--Piloting
KW  - Navigation (Aeronautics)
N1  - Includes bibliographical references and index
ER  -