United States. Environmental Protection Agency & Bortleson, G. C. (2001). Sediment-quality assessment of Franklin D. Roosevelt Lake and the upstream reach of the Columbia River, Washington, 1992. U.S. Geological Survey For sale by the U.S. Geological Survey, Map Distribution.
Chicago Style (17. basım) AtıfUnited States. Environmental Protection Agency ve Gilbert Carl Bortleson. Sediment-quality Assessment of Franklin D. Roosevelt Lake and the Upstream Reach of the Columbia River, Washington, 1992. Reston, Va., Denver, CO: U.S. Geological Survey For sale by the U.S. Geological Survey, Map Distribution, 2001.
MLA (9th ed.) AtıfUnited States. Environmental Protection Agency ve Gilbert Carl Bortleson. Sediment-quality Assessment of Franklin D. Roosevelt Lake and the Upstream Reach of the Columbia River, Washington, 1992. U.S. Geological Survey For sale by the U.S. Geological Survey, Map Distribution, 2001.