The geology of North Dakota .
Hainer, John L.
The geology of North Dakota . - Grand Forks, 1956. - 46 p. illus., maps (3 fold. (1 col.) in pocket) tables. 23 cm.
Bibliography: p. 44-46.
gs 56000183
Geology--North Dakota.
Mines and mineral resources--North Dakota.
QE149 / .H25
557.84
The geology of North Dakota . - Grand Forks, 1956. - 46 p. illus., maps (3 fold. (1 col.) in pocket) tables. 23 cm.
Bibliography: p. 44-46.
gs 56000183
Geology--North Dakota.
Mines and mineral resources--North Dakota.
QE149 / .H25
557.84