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Avalanche Handbook
Ronald I. Perla
M. Martinelli
出版
Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, Alpine Snow and Avalanche Research Project
, 1978
URL
http://books.google.com.hk/books?id=pcU8AAAAYAAJ&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN