REFERENCES 



National Academy of Sciences. 1973. Water Quality Criteria 1972. Environ- 

 mental Studies Board, National Academy of Engineering, Wash. D. C. 

 594 pp. 



Woodward-Clyde Consultants. 1976. Preliminary Report - Gravel Removal 



Studies in Selected Arctic and Sub-Arctic Streams in Alaska. U. S. Fish 

 and Wildlife Services. FWS/OBS 76/21. Wash. D. C. 127 pp. 



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