APA (7th ed.) Citation

Swadley, W. C. (1977). Geologic map of the Bedford quadrangle, north-central Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Swadley, W. C. Geologic Map of the Bedford Quadrangle, North-central Kentucky. Reston, Va.: U.S. Geological Survey, 1977.

MLA (9th ed.) Citation

Swadley, W. C. Geologic Map of the Bedford Quadrangle, North-central Kentucky. U.S. Geological Survey, 1977.

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