Ballard, Frederick V.
Structural and stratigraphic relationships in the paleozoic rocks of eastern North Dakota.
- Grand Forks, N.D., 1963.
- v, 42 p. maps, diagrs. 23 cm.
Part of illustrative matter folded in envelope.
Bibliography: p. 39-42.
gs 64000180
Geology--North Dakota.
Geology, Stratigraphic--Paleozoic.
Petrology--North Dakota.
QE149 / .B3