TY - BOOK AU - Petsch,Bruno Carl TI - Geology of the Missouri Valley in South Dakota, T2 - South Dakota. State Geologist. Report of investigations, AV - QE164.M5 P4 U1 - 557.83 PY - 1946/// CY - Vermillion, S.D. PB - University of South Dakota KW - Geology KW - South Dakota KW - Missouri Valley KW - Missouri River Valley N1 - At head of title: State of South Dakota ... State Geological Survey; Part of illustrative matter is folded in pocket; Bibliographical foot-notes ER -