(1989). Draft environmental impact statement for nursery pest management / USDA Forest Service, Pacific Northwest Region.
Chicago Style (17. basım) AtıfDraft Environmental Impact Statement for Nursery Pest Management / USDA Forest Service, Pacific Northwest Region. 1989.
MLA (9th ed.) AtıfDraft Environmental Impact Statement for Nursery Pest Management / USDA Forest Service, Pacific Northwest Region. 1989.
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