Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Grout Frank F. & Broderick T. M. (1918). Geologic map of the Eastern Mesabi district. Minnesota Geological and natural History Survey.
Chicago Style (17th ed.) Zitazioa
Grout Frank F. eta Broderick T. M. Geologic Map of the Eastern Mesabi District. Minnesota Geological and natural History Survey, 1918.
MLA (9th ed.) Zitazioa
Grout Frank F. eta Broderick T. M. Geologic Map of the Eastern Mesabi District. Minnesota Geological and natural History Survey, 1918.
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