1. Academy of Natural Science of Philadelphia, Division of Limnology and Ecology, 1974. Slippery Rock Creek Acid Mine Waste Studies for the Appalachian Regional Commission. Philadelphia, PA.
2. American Public Health Association, American Water Works Association, and Water Pollution Control Federation, 1998. Standard Methods for the examination of water and wastewater, twentieth ed. Washington, DC.
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4. Effects of mine drainage on the River Hayle, Cornwall. A) Factors affecting concentrations of copper, zinc and iron in water, sediments and dominant invertebrate fauna;Brown;Hydrobiologia,1977
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