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ISSN 0016-7606
EISSN 1943-2674
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Bulletin of the Geological Society of America

GSA Bulletin September 30, 1928, Vol.39, 643-701. doi:10.1130/GSAB-39-643
GSA Bulletin September 30, 1928, Vol.39, 703-768. doi:10.1130/GSAB-39-703
GSA Bulletin September 30, 1928, Vol.39, 769-886. doi:10.1130/GSAB-39-769
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