TY - BOOK AU - Flint,Norman K. ED - Ohio. TI - Geology of Perry County T2 - Fourth series bulletin AV - QE151 .A18 no. 48 PY - 1951/// CY - Columbus, [Ohio] PB - Division of Geological Survey KW - Geology KW - Ohio KW - Perry County N1 - Includes bibliographical references and index ER -