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Farm-level Effects of Soil Conservation and Commodity Policy Alternatives

其他書名	Model and Data Documentation
出版	U.S. Department of Agriculture, Economic Research Service, Natural Resource Economics Division, 1986
URL	http://books.google.com.hk/books?id=4X_cJhuzAHwC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN