Cushman, J. A.; Stainbrook, M. A. (1943). Some Foraminifera from the Devonian of Iowa. Contributions from the Cushman Laboratory for Foraminiferal Research. 19(4): 73-79.
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Cushman, J. A.; Stainbrook, M. A.
1943
Some Foraminifera from the Devonian of Iowa
Contributions from the Cushman Laboratory for Foraminiferal Research