Flint, Norman K. 1921- Geology of Perry County / by Norman K. Flint. - Columbus, [Ohio] : Division of Geological Survey, 1951. - ix, 234 p. : ill., maps ; 24 cm. - Fourth series bulletin ; 48 . - Bulletin (Ohio. Division of Geological Survey) ; 48. . Includes bibliographical references and index. LCCN: gs 52000090 Subjects--Topical Terms: Geology--Ohio--Perry County. LC Class. No.: QE151 / .A18 no. 48 Gov. Doc. Class. No.: ONR 84.3:48