American Species of Orthophragmina and Lepidocyclina
Subtitle: Shorter Contributions to General Geology, 1919.
Contributors: Cushman, Joseph Augustine, 1881-1949.
Series: U.S. Geological Survey professional paper -- 125-D
Publisher: s.n
Published: 1920
Place of publication: S.l
Language: eng
Notes: Copy 2 Hard Copy

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