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Porosity of Cheatgrass Fuel Related to Weight

James Kerr Brown

出版	U.S. Department of Agriculture, Forest Service, Intermountain Forest & Range Experiment Station, 1969
URL	http://books.google.com.hk/books?id=y2LjeM6jRKYC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN