Hendricks, Thomas Andrews, 1907- The manganese deposits of the Turtle Mountains, North Dakota, by Thomas A. Hendricks and Wilson M. Laird. - Grand Forks, N.D., 1943. - 591-602 p. 1 illus. 22 cm. Cover title. "Reprinted from Economic geology, vol. XXXVIII, no. 7, November 1943." LCCN: gs 44000027 Subjects--Topical Terms: Manganese ores--North Dakota--Turtle Mountains.Geology--North Dakota--Turtle Mountains. LC Class. No.: TN490.M3 / H45 Dewey Class. No.: 553.46