APA (7th ed.) Citation

Ulberg, A. L., & Risch, M. R. (2008). Total mercury and methylmercury in Indiana streams, August 2004-September 2006. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Ulberg, Amanda L., and Martin R. Risch. Total Mercury and Methylmercury in Indiana Streams, August 2004-September 2006. Reston, Va.: U.S. Geological Survey, 2008.

MLA (9th ed.) Citation

Ulberg, Amanda L., and Martin R. Risch. Total Mercury and Methylmercury in Indiana Streams, August 2004-September 2006. U.S. Geological Survey, 2008.