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Proceedings of the Tri-State Symposium, Farming for Profit and Stewardship, Sustainable Agriculture in the Pacific Northwest
其他書名
March 2 & 3, 1989, Templin's Resort, Post Falls, Idaho
出版Department of Agronomy and Soils, Washington State University, 1990
URLhttp://books.google.com.hk/books?id=AClIAAAAYAAJ&hl=&source=gbs_api