Mielberg, J. (1876). Die magnetische Declination in Jekaterinburg.
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Dyfyniad Arddull Chicago
Mielberg, Johann. Die Magnetische Declination in Jekaterinburg. St.Petersburg, 1876.
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Dyfyniad MLA
Mielberg, Johann. Die Magnetische Declination in Jekaterinburg. 1876.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.