Title: Abstract digest
Subjects: Abstracts, Congresses, Environmental aspects of Volcanic ash, tuff, etc, Eruption, 1980, Volcanic ash, tuff, Workshop on Mount St. Helens Eruption: Its Atmospheric Effects and Potential Climatic Impact (1980 : Washington, D.C.)
Places: Region Saint Helens, Mount, Saint Helens, Mount (Wash.), Washington (State)