APA (7th ed.) Citation

Nelson, W. J. (1998). Bedrock geology of the Paducah 1nx2n CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri. U.S. G.P.O. For sale by U.S. Geological Survey, Information Services.

Chicago Style (17th ed.) Citation

Nelson, W. John. Bedrock Geology of the Paducah 1nx2n CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri. Washington, Denver, CO: U.S. G.P.O. For sale by U.S. Geological Survey, Information Services, 1998.

MLA (9th ed.) Citation

Nelson, W. John. Bedrock Geology of the Paducah 1nx2n CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri. U.S. G.P.O. For sale by U.S. Geological Survey, Information Services, 1998.