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Issues
Volume 50, Number 11
01 November 1939

ISSN 0016-7606
EISSN 1943-2674
Bulletin of the Geological Society of America
Geological reconnaissance in northern Sierra Madre Occidental of Mexico
GSA Bulletin November 01, 1939, Vol.50, 1625-1722. doi:https://doi.org/10.1130/GSAB-50-1625
Paleogeographic Studies in Northeastern Sonora
GSA Bulletin November 01, 1939, Vol.50, 1723-1744. doi:https://doi.org/10.1130/GSAB-50-1723
Permian fusulines from Sonora
GSA Bulletin November 01, 1939, Vol.50, 1745-1760. doi:https://doi.org/10.1130/GSAB-50-1745
Catskill facies of New York State
GSA Bulletin November 01, 1939, Vol.50, 1761-1794. doi:https://doi.org/10.1130/GSAB-50-1761
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