颁布单位：[University of Alberta] |
颁布时间：1980 |
实施时间：1980 |
学科分类：[Frozen, Ground,, Soil, Stability, in, Permafrost,, Soil, Stability, in, Canada,, North, of, Permafrost, Northern, Canada, Canadian, Arctic, Geology,, Historical, Frozen, Ground, Stratigraphy, Mackenzie, Delta, District, of, Mackenzie,, NW]
颁布单位：[University of Alberta] |
颁布时间：1980 |
实施时间：1980 |
学科分类：[Outdoor, Recreation, Northern, Canada, Camping, National, Parks,, Outdoor, Recreation, Recreation,, Outdoor, Tourist, Industry, Canada,, North, of, Northwest, Territories, Canadian, Arctic]
效力级别
1980
