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

Sonraí bibleagrafaíochta
Príomhchruthaitheoir:	Morris, John D.
Rannpháirtithe:	Austin, Steven A.
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	Green Forest, AR Master Books c2003.
Ábhair:	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.