TY  - BOOK
AU  - Davenport, William W.
CN  - TL540.S687 D38
CN  - TL540.S687
CY  - New York :
DA  - c1978.
ID  - 38238
KW  - Aeronautics
N1  - Includes index.
PB  - Scribner,
PP  - New York :
PY  - c1978.
SN  - 0684157934 :
T1  - Gyro! :The life and times of Lawrence Sperry /
TI  - Gyro! :The life and times of Lawrence Sperry /
ER  -