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Field Guide to the Common Diseases and Insect Pests of Oregon and Washington Conifers

出版	USDA Forest Service, Pacific Northwest Region, 2006
主題	Gardening / TreesHistory / United States / State & Local / Pacific Northwest (OR, WA)Nature / Animals / Insects & SpidersNature / Plants / TreesScience / Life Sciences / HorticultureTechnology & Engineering / Agriculture / Forestry
ISBN	01607624489780160762444
URL	http://books.google.com.hk/books?id=hsYdWiYz_QsC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN