Butler, D. L. (1995). Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Dolores Project Area, Southwestern Colorado and Southeastern Utah, 1990-91. U.S. Dept. of the Interior, U.S. Geological Survey.
Chicago Style (17th ed.) CitationButler, David L. Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project Area, Southwestern Colorado and Southeastern Utah, 1990-91. Denver, Colo.: U.S. Dept. of the Interior, U.S. Geological Survey, 1995.
MLA (9th ed.) CitationButler, David L. Reconnaissance Investigation of Water Quality, Bottom Sediment, and Biota Associated with Irrigation Drainage in the Dolores Project Area, Southwestern Colorado and Southeastern Utah, 1990-91. U.S. Dept. of the Interior, U.S. Geological Survey, 1995.