APA (7th ed.) Citation

Illinois State Geological Survey & Nelson, W. J. (1991). Geology of the Eddyville, Stonefort, and Creal Springs quadrangles, Southern Illinois. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Illinois State Geological Survey and W. John Nelson. Geology of the Eddyville, Stonefort, and Creal Springs Quadrangles, Southern Illinois. Champaign, IL: Illinois State Geological Survey, 1991.

MLA (9th ed.) Citation

Illinois State Geological Survey and W. John Nelson. Geology of the Eddyville, Stonefort, and Creal Springs Quadrangles, Southern Illinois. Illinois State Geological Survey, 1991.