Cushman, J. A.; Applin, E. R. (1947). Some new Foraminifera from the American Cretaceous. Contributions from the Cushman laboratory for foraminiferal research. 23(3): 53-55.
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Cushman, J. A.; Applin, E. R.
1947
Some new Foraminifera from the American Cretaceous.
Contributions from the Cushman laboratory for foraminiferal research