Hatmaker, P. C., & Davis, H. W. (1938). The fluorspar industry of the United States with special reference to Illinois-Kentucky district.
Chicago Style (17th ed.) CitationHatmaker, Paul Castleton, and Hubert Wesley Davis. The Fluorspar Industry of the United States with Special Reference to Illinois-Kentucky District. 1938.
MLA (9th ed.) CitationHatmaker, Paul Castleton, and Hubert Wesley Davis. The Fluorspar Industry of the United States with Special Reference to Illinois-Kentucky District. 1938.
Warning: These citations may not always be 100% accurate.