Flint, Richard Foster, 1902- Pleistocene geology of eastern South Dakota. - Washington, U.S. Govt. Print. Off., 1955. - 173 p. maps (5 fold., part col., in pocket) diagrs. (2 fold. in pocket) 29 cm. "Literature cited": p. 165-168. LCCN: gs 55000317 Subjects--Topical Terms: Geology, Stratigraphic--PleistoceneGeology--South DakotaGlacial epoch--South Dakota. LC Class. No.: QE75 / .P9 no. 262 Dewey Class. No.: 551.78 551.79 Gov. Doc. Class. No.: I 19.16:262