00337nam a2200121Ia 4500008004100000040001200041082001300053100003300066245003500099250001200134260006100146300000800207200103s9999||||xx |||||||||||||| ||und||  aIMU-MPC  aColumn-4  aHitchins, H.L. and May, W.E. 0aFrom Lodestone to Gyro-Compass  a1st Ed.  bHitchinson's Scientific and Technical Publicationsc1952  a219