00770nam0-22002771i-450-990001011340403321000101134FED01000101134(Aleph)000101134FED0100010113420000920d1958----km-y0itay50------baengAnnals of the international geophysical yearVol. IV Parti IV-VII Geomagnetism[S.l.]Pergamon Press1958GeofisicaTerra550Igy Instruction Manual486326ITUNINARICAUNIMARCBK99000101134040332119A-0061542FI1FI1Annals of the international geophysical year354938UNINAING01