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

Podrobná bibliografie
Hlavní autor:	Morris, John D.
Další autoři:	Austin, Steven A.
Médium:	Kniha
Jazyk:	English
Vydáno:	Green Forest, AR Master Books c2003.
Témata:	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.