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Harvesting Costs & Returns Under 4 Cutting Methods in Mature Beech-birch-maple Stands in New England

Stanley M. Filip

出版	Northeastern Forest Experiment Station, Forest Service, U.S. Department of Agriculture, 1967
URL	http://books.google.com.hk/books?id=Ydh9vQYwmVIC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN