Alexander, G. R., & Ryckman, J. R. (1976). Trout production and catch under normal and special angling regulations in the north branch of the Au Sable River, Michigan. Michigan Department of Natural Resources, Fisheries Division.
Chicago Style (17th ed.) CitationAlexander, Gaylord R., and James R. Ryckman. Trout Production and Catch Under Normal and Special Angling Regulations in the North Branch of the Au Sable River, Michigan. [Lansing, Mich.?]: Michigan Department of Natural Resources, Fisheries Division, 1976.
MLA (9th ed.) CitationAlexander, Gaylord R., and James R. Ryckman. Trout Production and Catch Under Normal and Special Angling Regulations in the North Branch of the Au Sable River, Michigan. Michigan Department of Natural Resources, Fisheries Division, 1976.