APA (7th ed.) Citation

Nelson, W. J. (1983). Geologic disturbances in Illinois coal seams. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Nelson, W. John. Geologic Disturbances in Illinois Coal Seams. Champaign, Ill.: Illinois State Geological Survey, 1983.

MLA (9th ed.) Citation

Nelson, W. John. Geologic Disturbances in Illinois Coal Seams. Illinois State Geological Survey, 1983.

Warning: These citations may not always be 100% accurate.