Cushman, J. A.; Hanna, G. D. (1927). Foraminifera from the Eocene near Coalinga, California. Proceedings of the California Academy of Sciences. (4) 16 (8): 205-229.
146295
Cushman, J. A.; Hanna, G. D.
1927
Foraminifera from the Eocene near Coalinga, California.