APA (7th ed.) Citation

Smith, A. E. (1975). Map showing bedrock topography beneath alluvial deposits of the Calhoun quadrangle, western Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Smith, Avery E. Map Showing Bedrock Topography Beneath Alluvial Deposits of the Calhoun Quadrangle, Western Kentucky. Reston, Va.: U.S. Geological Survey, 1975.

MLA (9th ed.) Citation

Smith, Avery E. Map Showing Bedrock Topography Beneath Alluvial Deposits of the Calhoun Quadrangle, Western Kentucky. U.S. Geological Survey, 1975.