Foraminifera of the genus Siphonina and related genera
By: by Joseph A. Cushman ...
Series: [Geological pamphlets -- 867]
Publisher: U.S. Govt. print. off.
Published: 1927
Place of publication: Washington
Language: eng
Number of pages: 15
Subjects: Foraminifera
Notes: Cover-title.

"No. 2716 - From the Proceedings of the United States National museum. vol. 72, art. 20, pp. 1-15, with pls. 1-4."