Footprints in the ash the explosive story of Mount St. Helens

Dades bibliogràfiques
Autor principal:	Morris, John D.
Altres autors:	Austin, Steven A.
Format:	Llibre
Idioma:	English
Publicat:	Green Forest, AR Master Books c2003.
Matèries:	Volcanic ash, tuff, etc. > Washington (State) > Saint Helens, Mount. Geology, Stratigraphic. Geology > Washington (State) > Saint Helens, Mount. Geology > Washington (State) > Spirit Lake. Saint Helens, Mount (Wash.) > Eruption, 1980.