Cushman, J. A.; Parker, F. L. (1937). Notes on some Oligocene species of Bulimina and Buliminella. Contributions from the Cushman laboratory for foraminiferal research. 13(1): 36-40.
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Cushman, J. A.; Parker, F. L.
1937
Notes on some Oligocene species of Bulimina and Buliminella.
Contributions from the Cushman laboratory for foraminiferal research