Morphology, genesis, and classification of soils forming in recent age tephra deposits from Mt. St. Helens volcano
By: by Mark E. Johnson.
Published: 1979
Language: eng
Number of pages: 99
Subjects: Soils -- Washington (State) -- Mount Saint Helens.
Notes: Typescript (photocopy).

Thesis (M.S.)--Oregon State University, 1980.

Includes bibliography.