Author: Mullineaux, D.R., 1996.:
Title: Pre-1980 tephra-fall deposits erupted from Mount St. Helens, Washington. [U.S. Geol. Surv. Prof. Pap., 1563.]
Description: Washington 1996. 4to. Pp. viii,99, 72 illustr. in text (incl. many colour photos), 8 tables, refs. Orig. pict. wrappers. Fine.

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