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Southwestern North Dakota clay deposits :Stark, Slope, and Billings Counties, N. Dak.

Published Year

• 1940-1949 (1)

Subject

• Clay--North Dakota--Billings County (1) *
• Clay--North Dakota--Slope County (1)
• Clay--North Dakota--Stark County (1)

Author

• Clarke, Fremont F. (1)

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