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520 foot level bench

MLA citation style
Ashley, G. H. (G. H. ). “520 Foot Level Bench”. no date. 1233, 1924July .
APA citation style
Ashley, G. H. (G. H. ). (1924). 520 foot level bench. 1233. Retrieved from https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_881
Chicago citation style
Ashley, Geo. H. (George Hall). “520 Foot Level Bench”. 1233, Pennsylvania Geological Survey - Historical Photographs, July 21, 1924. https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_881.
Note: These citations are programmatically generated and may be incomplete.