APA (7th ed.) Citation

Norris, R. L. (1975). Map showing bedrock topography and area of occurrence of Madisonville limestone member of Sturgis formation (upper Pennsylvanian) beneath alluvial deposits of the Smith Mills quadrangle, Henderson and Union counties, Kentucky. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Norris, Ronald L. Map Showing Bedrock Topography and Area of Occurrence of Madisonville Limestone Member of Sturgis Formation (upper Pennsylvanian) Beneath Alluvial Deposits of the Smith Mills Quadrangle, Henderson and Union Counties, Kentucky. Reston, Va.: U.S. Geological Survey, 1975.

MLA (8th ed.) Citation

Norris, Ronald L. Map Showing Bedrock Topography and Area of Occurrence of Madisonville Limestone Member of Sturgis Formation (upper Pennsylvanian) Beneath Alluvial Deposits of the Smith Mills Quadrangle, Henderson and Union Counties, Kentucky. U.S. Geological Survey, 1975.