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Same layer of dark limestone shown at (B) cut off by fault

MLA citation style
Ashley, G. H. (G. H. ). “Same Layer Of Dark Limestone Shown At (B) Cut Off By Fault”. no date. 1192, 1923Aug. .
APA citation style
Ashley, G. H. (G. H. ). (1923). Same layer of dark limestone shown at (B) cut off by fault. 1192. Retrieved from https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_861
Chicago citation style
Ashley, Geo. H. (George Hall). “Same Layer Of Dark Limestone Shown At (B) Cut Off By Fault”. 1192, Pennsylvania Geological Survey - Historical Photographs, August 23, 1923. https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_861.
Note: These citations are programmatically generated and may be incomplete.