Huddle, J. W., & Englund, K. J. (1966). Geology and coal reserves of the Kermit and Varney area, Kentucky. United States Department of the Interior, Geological Survey.
Chicago Style (17th ed.) CitationHuddle, John Warfield, and Kenneth John Englund. Geology and Coal Reserves of the Kermit and Varney Area, Kentucky. Washington: United States Department of the Interior, Geological Survey, 1966.
MLA (9th ed.) CitationHuddle, John Warfield, and Kenneth John Englund. Geology and Coal Reserves of the Kermit and Varney Area, Kentucky. United States Department of the Interior, Geological Survey, 1966.
Warning: These citations may not always be 100% accurate.