The spearfish formation in the Williston Basin of western North Dakota,
Dow, Wallace G.
The spearfish formation in the Williston Basin of western North Dakota, by Wallace G. Dow. - Grand Forks, N.D., 1967. - ii, 28 p. illus., maps. 23 cm. - North Dakota. Geological Survey. Bulletin 52 . - Bulletin (North Dakota Geological Survey) ; 52. .
Part of the illustrative matter fold. in pocket.
Bibliography: p. 27-28.
gs 67000323 //r84
Geology--North Dakota.
Geology--Williston Basin.
Geology, Stratigraphic--Permian.
Geology, Stratigraphic--Triassic.
QE149 / .D67
The spearfish formation in the Williston Basin of western North Dakota, by Wallace G. Dow. - Grand Forks, N.D., 1967. - ii, 28 p. illus., maps. 23 cm. - North Dakota. Geological Survey. Bulletin 52 . - Bulletin (North Dakota Geological Survey) ; 52. .
Part of the illustrative matter fold. in pocket.
Bibliography: p. 27-28.
gs 67000323 //r84
Geology--North Dakota.
Geology--Williston Basin.
Geology, Stratigraphic--Permian.
Geology, Stratigraphic--Triassic.
QE149 / .D67