Gough, Larry P., Crock, James G., Seal, Robert R., Wang, Bronwen, Weber-Scannell, Phyllis, Gough, Larry P., Alaska Department of, Fish, and Game,, 2004, Biogeochemistry, stable-isotopic composition, and feeding habits of Arctic grayling (Thymallus arcticus) in the lower Fortymile River, eastern Alaska: : United States, v. 1685, p. 21-43.