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1998
Seal, Robert R., Jane M. Hammarstrom, Scott C. Southworth, Allen L. Meier, David P. Haffner, Arthur P. Schultz, Geoffrey S. Plumlee, Marta J. K. Flohr, John C. Jackson, Steven M. Smith et al. Preliminary Report on Water Quality Associated with the Abandoned Fontana and Hazel Creek Mines, Great Smoky Mountains National Park, North Carolina and Tennessee. Washington, D.C.: U. S. Department of the Interior, U. S. Geological Survey, 1998.