APA (7th ed.) Citation

Outerbridge, W. F. (1975). Geologic map of the Austerlitz quadrangle, Clark and Bourbon counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Outerbridge, William F. Geologic Map of the Austerlitz Quadrangle, Clark and Bourbon Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1975.

MLA (9th ed.) Citation

Outerbridge, William F. Geologic Map of the Austerlitz Quadrangle, Clark and Bourbon Counties, Kentucky. U.S. Geological Survey, 1975.