Contact-metamorphic tungsten deposits of the United States, in Contributions to economic geology, 1921; Part I - Metals and nonmetals except fuels
Hess, F.L., and Larsen, E.S., 1921, Contact-metamorphic tungsten deposits of the United States, in Contributions to economic geology, 1921; Part I - Metals and nonmetals except fuels: U.S. Geological Survey Bulletin 725, p. 245-309.
