Wiele, S. M. (2012). Biotic, water-quality, and hydrologic metrics calculated for the analysis of temporal trends in National Water Quality Assessment Program data in the western United States. U.S. Department of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationWiele, Stephen Mark. Biotic, Water-quality, and Hydrologic Metrics Calculated for the Analysis of Temporal Trends in National Water Quality Assessment Program Data in the Western United States. Reston, Virginia: U.S. Department of the Interior, U.S. Geological Survey, 2012.
MLA (9th ed.) CitationWiele, Stephen Mark. Biotic, Water-quality, and Hydrologic Metrics Calculated for the Analysis of Temporal Trends in National Water Quality Assessment Program Data in the Western United States. U.S. Department of the Interior, U.S. Geological Survey, 2012.