Hoffman, J.D., Brew, D.A., Forn, C.L., and Johnson, B.R., 1980, Chemical variability of a metavolcanic rock unit in the Tracy Arm-Fords Terror Wilderness study area, Alaska, and the definition of background values for geochemical purposes, in U.S. Geological Survey, Shorter contributions to geochemistry, 1979: U.S. Geological Survey Professional Paper 1129-D, p. D1-D8.
This publication is part of a larger work. Please see P 1129-A-I for more information.