Geologic time in North Dakota
By: by John P. Bluemle and Lee Clayton.
Contributors: Clayton, Lee, 1938-
Series: Educational series / North Dakota Geological Survey -- 14; Educational series (Grand Forks, N.D.) -- 14
Publisher: Richtman's Midwest
Published: 1982
Place of publication: Fargo, N.D
Language: eng
Number of pages: 17
Subjects: Geology -- North Dakota