Mount St. Helens: Biological Research Following the 1980 Eruptions - An Indexed Bibliography and Research Abstracts (1980-93). General Technical Report PNW-GTR-342, September 1994
Frenzen Peter M.
Delano Anne M.
Crisafulli Charles M.
Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station , 1994. - 149 s.
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