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Pottsville sandstone (probably Upper Connoquenessing)

MLA citation style
Graeber, C. K. “Pottsville Sandstone (Probably Upper Connoquenessing)”. no date. 4710, 1932Aug. .
APA citation style
Graeber, C. K. (1932). Pottsville sandstone (probably Upper Connoquenessing). 4710. Retrieved from https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3A68785
Chicago citation style
Graeber, Charles Karsner. “Pottsville Sandstone (Probably Upper Connoquenessing)”. 4710, Pennsylvania Geological Survey - Historical Photographs, August 1932. https://digitalarchives.powerlibrary.org/papd/islandora/object/papd%3A68785.
Note: These citations are programmatically generated and may be incomplete.