00338nam a2200133Ia 4500008004100000040001200041082001300053100004000066245003700106250001100143260003300154260000900187300000800196191121s9999||||xx |||||||||||||| ||und||  aIMU-MPC  aColumn-5  aMeteorological Observation Stations 0aAdmiralty list of radio signals   aVol. 4  bThe Hydrographer of the Navy  c1998  a142