(1904-1920 = 1902-1919 (lac. 1905/06/1913/17/18))
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Results of magnetic observations made by the United States Coast and Geodetic Survey [1904-1932] / United States Coast and Geodetic survey
[périodique] Voir les bulletins disponibles
[périodique] Voir les bulletins disponibles Results of magnetic observations made by the United States Coast and Geodetic Survey [1904-1932] [texte imprimé] / United States Coast and Geodetic survey, Auteur . - Washington : Government Printing Office (GPO). Langues : Anglais (eng)
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