Emmons, W. H. (1913). The enrichment of sulphide ores. Department of the Interior, United States Geological Survey.
Chicago Style (17th ed.) CitationEmmons, William H. The Enrichment of Sulphide Ores. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1913.
MLA (9th ed.) CitationEmmons, William H. The Enrichment of Sulphide Ores. Department of the Interior, United States Geological Survey, 1913.
Warning: These citations may not always be 100% accurate.