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A Method to Estimate Risk of Soil Erosion to Logging Sites in the Kootenay Area of British Columbia
R. K. KragForest Engineering Research Institute of Canada
出版Forest Engineering Research Institute of Canada = Institut canadien de recherches en génie forestier, 1980
URLhttp://books.google.com.hk/books?id=ODZh_dlF-qMC&hl=&source=gbs_api