APA (7th ed.) Citation

Clark, M. L., & Lewis, M. E. (1997). Metal speciation in the upper Arkansas River, Colorado, 1990-93. U.S. Dept. of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Clark, Melanie L., and Michael E. Lewis. Metal Speciation in the Upper Arkansas River, Colorado, 1990-93. Denver, Colo.: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

MLA (9th ed.) Citation

Clark, Melanie L., and Michael E. Lewis. Metal Speciation in the Upper Arkansas River, Colorado, 1990-93. U.S. Dept. of the Interior, U.S. Geological Survey, 1997.