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Bulletin of the Geological Society of America

GSA Bulletin September 01, 1938, Vol.49, 1297-1336. doi:https://doi.org/10.1130/GSAB-49-1297
GSA Bulletin September 01, 1938, Vol.49, 1337-1416. doi:https://doi.org/10.1130/GSAB-49-1337
GSA Bulletin September 01, 1938, Vol.49, 1417-1424. doi:https://doi.org/10.1130/GSAB-49-1417
GSA Bulletin September 01, 1938, Vol.49, 1425-1430. doi:https://doi.org/10.1130/GSAB-49-1425
GSA Bulletin September 01, 1938, Vol.49, 1431-1440. doi:https://doi.org/10.1130/GSAB-49-1431
GSA Bulletin September 01, 1938, Vol.49, 1441-1484. doi:https://doi.org/10.1130/GSAB-49-1441
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