United States, Central Intelligence Agency. "504014 8-79 (543855)." Relief shown by shading and spot heights. Includes location map and comparative area map. Maps in margin: Population -- Lin... Central Intelligence Agency.
Richardson, G. B. (George Burr), 1872-1949 and Heald, K. C. (Kenneth Conrad), 1888-1971. compiled under the direction of G.B. Richardson and K.C. Heald ; oil and gas drafting by Lewis B. Pusey. Includes "Index to locations of anticlinal... U.S. Geological Survey.
1948. Alkire, Robert L. 1910-. Includes index to oil and gas fields. Includes: Generalized section of rocks of Ohio. Scale [1:380,160] compiled by Robert L. Alkire ; drafting by ... Ohio. Division of Geological Survey.
1960. Shearrow, George G. Scale [1:380,160] revised by ... George G. Shearrow and Theodore DeBrosse ; drafting by Harold J. Flint and Fletcher W. Twitty. Includes table of "... Ohio. Division of Geological Survey.