00455nam a2200145Ia 4500003000900000008004100009040001600050080001600066100002300082245006500105260006500170300001400235650004100249700001900290IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a550.38bAZP  aAzpiazu, Uealdo De 0aMagnetismo terrestrecpor Ubaldo de Azpiazu and Rodrigo Gil.  aMadridbTallers Del Instituto Geo Eraico Y Estadisticoc1919  avi, 101p.  aAstronomy and Astrophysics Thesaurus  aGil Rodrigogil