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Financial Possibilities of Pruning as Applied to Red Pine in Lower Michigan
Darroll D. Skilling
其他書名
Submitted ... in Partial Fulfillment ... for the Degree of Master of Forestry
出版University of Michigan, 1954
URLhttp://books.google.com.hk/books?id=uONBejJXjHMC&hl=&source=gbs_api