Stratigraphy of the Decorah formation
By: [by] G. Marshall Kay ...
Series: Contributions of Department of geology, Columbia university -- v. 42, no. 4
Published: 1929
Place of publication: Chicago]
Language: eng
Number of pages: 671
Subjects: Stratigraphic Geology; Geology; Paleontology
Notes: Vita.

"Preprinted ... from the Journal of geology, vol. XXXVII, no. 7, October-November 1929."

Cover-title.

Thesis (PH. D.)--Columbia university, 1929.