Johnson, B.L., 1910, Occurrence of wolframite and cassiterite in the gold placers of Deadwood Creek, Birch Creek district, in U.S. Geological Survey, Mineral resources of Alaska, report on progress of investigations in 1909: U.S. Geological Survey Bulletin 442, p. 246-250.
This publication is part of a larger work. Please see B 442 for more information.