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Geyer, Nancy A.. Middle South Umpqua Watershed Assessment and Action Plan. Umpqua Basin Watershed Council, 2003.
Snyder, Kai, Tim Sullivan, Deian Moore, Richard Raymond, E&S Environmental Chemistry Inc., and Umpqua Basin Watershed Council. Middle Umpqua River Watershed Assessment: Final Report., 2006.
U. S. Forest Service. North Umpqua Ranger District, and Umpqua National Forest. Middle/Lower Steamboat Creek Watershed Analysis: Version 1.0. [Roseburg, Or.]: Umpqua National Forest, North Umpqua Ranger District, 1999.
Snyder, Kai, Tim Sullivan, Deian Moore, Richard Raymond, E&S Environmental Chemistry Inc., and Umpqua Basin Watershed Council. Mill Creek Watershed Assessment: Final Report., 2006.
Robinson, Anja M.. Molluscan fisheries in Oregon: past, present, and future In The history, present condition, and future of the molluscan fisheries of North and Central America and Europe: Volume 2, Pacific Coast and supplemental topics, Edited by Clyde Jr. L. MacKenzie, Victor Jr. G. Burrell, Aaron Rosenfield and WIllis L. Hobart. NOAA Technical Report NMFS. U.S. Department of Commerce, 1997.

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