Cushman, J. A.; Parker, F. L. (1935). Some American Cretaceous Buliminas. Contributions from the Cushman laboratory for foraminiferal research. 11(4): 96-101.
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Cushman, J. A.; Parker, F. L.
1935
Some American Cretaceous Buliminas
Contributions from the Cushman laboratory for foraminiferal research