TY  - BOOK
AU  - Lees,Sidney
TI  - Air space and instruments
U1  - 629.135 
PY  - 1963///
CY  - New York
PB  - McGraw-Hill
KW  - Airplanes
KW  - Equipment and supplies
KW  - Space vehicles
KW  - Aircraft industry
KW  - Aeronautical instruments
KW  - Automatic control
KW  - Draper charles Stark
N1  - Includes index; Draper & anniversary volume
ER  -