Cole, W. S. (1958). Names of and Variation in Certain American Larger Foraminifera: Particularly the Camerinids. Nº 2. Bulletins of American Paleontology. 38: 257-284.
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Cole, W. S.
1958
Names of and Variation in Certain American Larger Foraminifera: Particularly the Camerinids. Nº 2