Additions to the flora of the Spotted Ridge Formation in central Oregon
By: by Sergius H. Mamay and Charles B. Read
Contributors: Read, Charles Brian, 1907-; Geological Survey (U.S.); Read, Charles Brian, 1907- author
Series: Geological Survey professional paper -- 274-; Shorter contributions to general geology -- 1955-57
Publisher: U.S. G.P.O.
Published: 1956
Place of publication: Washington, D.C
Language: eng
Number of pages: 226
Subjects: Paleobotany
Notes: Includes index.

Bibliography: p. 223-224.