The geology along Route 40 in Ohio Smyth, Pauline. creator Ohio Division of Geological Survey. text bibliography ohu Columbus State of Ohio, Division of Geological Survey 1955 monographic eng
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vi, 65 p. : ill., col. maps ; 25 cm. by Pauline Smyth. Includes bibliographical references (p. 62). n-us-oh Geology Ohio Physical geography Ohio QE151 .A183 no. 16 ONR 84.10:16 ONR 84.10:16 Information circular (Ohio. Division of Geological Survey) ; no. 16 gs 55000269 DLC 760803 20260227111403.0 gs 55000269