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Issues

ISSN 0016-7606
EISSN 1943-2674
In this Issue

Bulletin of the Geological Society of America

GSA Bulletin February 01, 1940, Vol.51, 191-211. doi:10.1130/GSAB-51-191
GSA Bulletin February 01, 1940, Vol.51, 213-235. doi:10.1130/GSAB-51-213
GSA Bulletin February 01, 1940, Vol.51, 237-253. doi:10.1130/GSAB-51-237
GSA Bulletin February 01, 1940, Vol.51, 255-260. doi:10.1130/GSAB-51-255
GSA Bulletin February 01, 1940, Vol.51, 261-335. doi:10.1130/GSAB-51-261
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