Não informado. (1882). Mineral resources of the United States. U.S. Geological Survey.
Chicago Style (17th ed.) CitationNão informado. Mineral Resources of the United States. Washington: U.S. Geological Survey, 1882.
MLA (8th ed.) CitationNão informado. Mineral Resources of the United States. U.S. Geological Survey, 1882.
Warning: These citations may not always be 100% accurate.