by Betsy R. Armstrong.
"San Juan avalanche project ... funded by Ouray County, Colorado, the Office of University Affairs, NASA with support from the U.S. Bureau of Reclamation, Office of Atmospheric Water Resources. A contribution to the United States Unesco man and the biosphere (MAB)--program project 6, study of the impact of human activities on mountain and tundra ecosystems."
Bibliography: pages 83-85.
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