Stratigraphy and paleontology of the Roubidoux formation of Missouri. - Heller, Robert L. (Robert Leo), 1919- (Rolla, 1954)
Bibliography: p. 109-112.
Keywords: Geology, Stratigraphic -- Ordovician; Geology -- Ozark Mountains; Paleontology -- Ordovician; Paleontology -- Ozark Mountains