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Lista de obras de Florence Bascom

Geology and mineral resources of the Honeybrook and Phoenixville quadrangles, Pennsylvania

report published in 1938

The Ancient Volcanic Rocks of South Mountain, Pennsylvania ⬇️

book published in 1896, part of the series U.S. Geological Survey Bulletin; no. 136

Cecil county ⬇️

1902 book by Maryland Geological Survey

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