LIBROS DEL AUTOR: ronald iperla

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  • Avalanche Handbook
    Jr. M. Martinelli / JrMMartinelli / Ronald I. Perla / Ronald IPerla
    Avalanches seldom touch man or his works, but when they do they can be disastrous. This illustrated handbook sets forth procedures for avoiding such disasters in ski areas, near roads and settlements, and in the back country.New snowfall and old snow redeposited by winds are the major causes of avalanches. Melting and freezing or the presents or absents of a temperature gradien...
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    23,40 €