Nichols, D.R., and Yehle, L.A., 1961, Analyses of gas and water from two mineral springs in the Copper River basin, Alaska, in U.S. Geological Survey, Geological survey research 1961, Short papers in the geologic and hydrologic sciences, Articles 293-435: U.S. Geological Survey Professional Paper 424-D, p. D191-D194.
This publication is part of a larger work. Please see P 424-D for more information.