United States. Bureau of Mines. Technical paper - Bureau of Mines. The Bureau : for sale by the Supt. of Docs., U.S.Govt. Print. Off.
Cita Chicago (17th ed.)United States. Bureau of Mines. Technical Paper - Bureau of Mines. Washington D.C.: The Bureau : for sale by the Supt. of Docs., U.S.Govt. Print. Off.
Cita MLA (8th ed.)United States. Bureau of Mines. Technical Paper - Bureau of Mines. The Bureau : for sale by the Supt. of Docs., U.S.Govt. Print. Off.
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