Sisler, J. D. (1924). Bituminous coal losses and mining methods in Pennsylvania: Including thickness, character, and reserves of coal. Dept. of Forests and Water, Topographic and Geologic Survey.
Chicago Style (17th ed.) CitationSisler, James D. Bituminous Coal Losses and Mining Methods in Pennsylvania: Including Thickness, Character, and Reserves of Coal. [Harrisburg]: Dept. of Forests and Water, Topographic and Geologic Survey, 1924.
MLA (8th ed.) CitationSisler, James D. Bituminous Coal Losses and Mining Methods in Pennsylvania: Including Thickness, Character, and Reserves of Coal. Dept. of Forests and Water, Topographic and Geologic Survey, 1924.
Warning: These citations may not always be 100% accurate.