APA (7th ed.) Citation

Amos, D. H. (1970). Geologic map of parts of the Alton and Derby quadrangles, Meade and Breckinridge Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Amos, Dewey Harold. Geologic Map of Parts of the Alton and Derby Quadrangles, Meade and Breckinridge Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1970.

MLA (9th ed.) Citation

Amos, Dewey Harold. Geologic Map of Parts of the Alton and Derby Quadrangles, Meade and Breckinridge Counties, Kentucky. U.S. Geological Survey, 1970.