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1,600 foot peneplane

MLA citation style
Ashley, G. H. (G. H. ). “1,600 Foot Peneplane”. no date. 1176, 1923Aug. .
APA citation style
Ashley, G. H. (G. H. ). (1923). 1,600 foot peneplane. 1176. Retrieved from https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_839
Chicago citation style
Ashley, Geo. H. (George Hall). “1,600 Foot Peneplane”. 1176, Pennsylvania Geological Survey - Historical Photographs, August 23, 1923. https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3Aspgsl-photo_839.
Note: These citations are programmatically generated and may be incomplete.