Cofnodi Dyfyniadau
Dyfyniad APA
Grout Frank F. & Broderick T. M. (1918). Geologic map of the Eastern Mesabi district. Minnesota Geological and natural History Survey.
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Dyfyniad Arddull Chicago
Grout Frank F. and Broderick T. M. Geologic Map of the Eastern Mesabi District. Minnesota Geological and natural History Survey, 1918.
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Dyfyniad MLA
Grout Frank F. and Broderick T. M. Geologic Map of the Eastern Mesabi District. Minnesota Geological and natural History Survey, 1918.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.