APA (7th ed.) Citation

Friedel, M. J. (1998). National Water-Quality Assessment Program--upper Illinois River Basin. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Friedel, Michael J. National Water-Quality Assessment Program--upper Illinois River Basin. [Urbana, Ill.]: U.S. Geological Survey, 1998.

MLA (9th ed.) Citation

Friedel, Michael J. National Water-Quality Assessment Program--upper Illinois River Basin. U.S. Geological Survey, 1998.