Scott, W. E., and McGimsey, R. G., 1991, Mass, distribution, grain size, and origin of 1989-1990 tephra-fall deposits of Redoubt Volcano, Alaska [abs.]: in Casadevall, T. J., (ed.), First international symposium on volcanic ash and aviation safety, U.S. Geological Survey Circular C 1065, p. 39.
Citation Updated: 2005-06-10 00:04:11