Dutro, J.T., Jr., 1979, Alaska, in U.S. Geological Survey, The Mississippian and Pennsylvanian (Carboniferous) systems in the United States, M-DD: U.S. Geological Survey Professional Paper 1110-M-DD, p. DD1-DD16.
This publication is part of a larger work. Please see P 1110-M-DD for more information.