Occurrence of the Collingwood formation in Michigan
By: by R. Ruedemann and G. M. Ehlers.
Contributors: Ehlers, George Marion, 1891- joint author.
Series: Contributions from the Museum of Geology, University of Michigan.; vol. II, no. 2.  July 10, 1924
Publisher: University of Michigan
Published: 1924
Place of publication: Ann Arbor
Language: eng
Number of pages: 18
Subjects: Geology, Stratigraphic; Geology -- Michigan; Paleontology -- Michigan
Other titles: Collingwood formation in Michigan.
Notes: Cover title.