颁布单位：[University of Alberta] |  颁布时间：1981 |  实施时间：1981 |  学科分类：[Skiing, Terrain, Disturbance, TEST, Program, (Skiing), Vegetation, Flora, Plants, Peace, River, Country, Environmental, Impacts, Botany, Northern, Alberta, Alberta,, North, of, Line, E-W, Thru, Edmonton, Pollution,, Environmental]

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