Armstrong, Betsy R. books & textbook
The Avalanche Book
Armstrong, Betsy R. Williams, Knox Armstrong, Richard L.
Fulcrum Pub /1992T Paperback / 256 Pages
isbn-10: 1555911196 / isbn-13: 9781555911195
Discovering Awareness: A Guide to Peace, Strength and Freedom
Tony D'Souza and Bud Wonsiewicz Betsy R. Armstrong Designed by Ann W. Douden Cover Photo by Michelle Maloy Dillon
Broadband Living Press /2006-12-29 Perfect Paperback / 144 Pages
isbn-10: 0979030404 / isbn-13: 9780979030406
Century of struggle against snow: A history of avalanche hazard in San Juan County, Colorado : a contribution to the United States Unesco man and the ... Institute of Arctic and Alpine Research ; 18)
Institute of Arctic and Alpine Research, University of Colorado /1976T Unknown Binding / 97 Pages
The Avalanche Book
Fulcrum Pub /1986T Hardcover / 231 Pages
isbn-10: 1555910017 / isbn-13: 9781555910013