APA (7th ed.) Citation

McDowell, R. C. (1986). The Geology of Kentucky: A text to accompany the geologic map of Kentucky (Online version 1.0.). [United States Department of the Interior, Geological Survey].

Chicago Style (17th ed.) Citation

McDowell, Robert C. The Geology of Kentucky: A Text to Accompany the Geologic Map of Kentucky. Online version 1.0. [Washington]: [United States Department of the Interior, Geological Survey], 1986.

MLA (9th ed.) Citation

McDowell, Robert C. The Geology of Kentucky: A Text to Accompany the Geologic Map of Kentucky. Online version 1.0. [United States Department of the Interior, Geological Survey], 1986.