APA (7th ed.) Citation

Dobrovolny, E., Ferm, J. C., & Eroskay, S. O. (1966). Geologic map of parts of the Greenup and Ironton quadrangles, Greenup and Boyd Counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Dobrovolny, Ernest, John C. Ferm, and S. O. Eroskay. Geologic Map of Parts of the Greenup and Ironton Quadrangles, Greenup and Boyd Counties, Kentucky. Washington, D.C.: U.S. Geological Survey, 1966.

MLA (8th ed.) Citation

Dobrovolny, Ernest, et al. Geologic Map of Parts of the Greenup and Ironton Quadrangles, Greenup and Boyd Counties, Kentucky. U.S. Geological Survey, 1966.