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Estimating Effect of Timber Harvesting Levels on Employment in Western United States

Enoch F. Bell

出版	Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1977
URL	http://books.google.com.hk/books?id=jKUFD-gddL4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN