APA (7th ed.) Citation

Freeman, W. O., Schmidt, A. R., & Stamer, J. K. (1986). Assessment of low-flow water quality in the Du Page River, Illinois. U.S. Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Freeman, W. O., A. R. Schmidt, and J. K. Stamer. Assessment of Low-flow Water Quality in the Du Page River, Illinois. Urbana, Ill.: U.S. Dept. of the Interior, Geological Survey, 1986.

MLA (9th ed.) Citation

Freeman, W. O., et al. Assessment of Low-flow Water Quality in the Du Page River, Illinois. U.S. Dept. of the Interior, Geological Survey, 1986.