APA (7th ed.) Citation

Brown, W. R. (1977). Geologic map of the Willard quadrangle, eastern Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Brown, William Randall. Geologic Map of the Willard Quadrangle, Eastern Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Brown, William Randall. Geologic Map of the Willard Quadrangle, Eastern Kentucky. U.S. Geological Survey, 1977.

Warning: These citations may not always be 100% accurate.