Gyro-compass and gyro-pilot manual.

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Sperry Gyroscope Company Inc
Formáid:	LEABHAR
Foilsithe / Cruthaithe:	Brooklyn N.Y. Sperry Gyroscope Company Inc.,.
Ábhair:	Gyro compass. Gyroscope. Pilots and piloting.