Geologic map and lignite deposits of the New Salem Quadrangle, Morton County, North Dakota

1973 ◽  
1947 ◽  
Author(s):  
Richard W. Lemke ◽  
Fred S. Jensen ◽  
Keyword(s):  

1947 ◽  
Author(s):  
Richard W. Lemke ◽  
J. Hiram Smith ◽  
Keyword(s):  

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