APA (7th ed.) Citation

Nelson, W. J., Krausse, H. F., & Bristol, H. M. (1981). The Cottage Grove Fault System in southern Illinois. Illinois State Geological Survey.

Chicago Style (17th ed.) Citation

Nelson, W. John, H. F. Krausse, and Hubert M. Bristol. The Cottage Grove Fault System in Southern Illinois. Champaign, IL: Illinois State Geological Survey, 1981.

MLA (9th ed.) Citation

Nelson, W. John, et al. The Cottage Grove Fault System in Southern Illinois. Illinois State Geological Survey, 1981.