Nelson, W. J. (1998). Bedrock geology of the Paducah 1 2 CUSMAP quadrangle, Illinois, Indiana, Kentucky, and Missouri. United States Gov. Print. Off.
Chicago Style (17th ed.) CitationNelson, W. James. Bedrock Geology of the Paducah 1 2 CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri. Washington: United States Gov. Print. Off, 1998.
MLA (9th ed.) CitationNelson, W. James. Bedrock Geology of the Paducah 1 2 CUSMAP Quadrangle, Illinois, Indiana, Kentucky, and Missouri. United States Gov. Print. Off, 1998.
Warning: These citations may not always be 100% accurate.