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Lua i Stíl Chicago (17ú heag.)Oregon Bureau of Mines and Geology. Minerals and Mineral Industries of Oregon. [Panama-Pacific ed.]. [N.p.], 1915.
Lua MLA (8ú heag.)Oregon Bureau of Mines and Geology. Minerals and Mineral Industries of Oregon. [Panama-Pacific ed.]. 1915.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.