Riehle, J. R., Meyer, C. E., Ager, T. A., Kaufman, D. S., and Ackerman, R. E., 1987, The Aniakchak tephra deposit, a late Holocene marker horizon in western Alaska: in Hamilton, T. D. and Galloway, J. P., (eds.), Geologic studies in Alaska by the U.S. Geological Survey during 1986, U.S. Geological Survey Circular C 0998, p. 19-22.
Citation Updated: 2015-06-17 23:30:46