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A Portable Air Sampler for Field Use

W. J. G. BeveridgeChemical Control Research Institute (Canada)Forest Pest Management Institute (Canada)

出版	Forest Pest Management Institute, Forestry Directorate, Department of Fisheries and the Environment, 1977
URL	http://books.google.com.hk/books?id=xhnPXbFlzlEC&hl=&source=gbs_api