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An Improved Tri-tube Cryogenic Gravel Sampler

Fred H. EverestCarl E. McLemoreJohn F. Ward

出版	Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1980
URL	http://books.google.com.hk/books?id=wCaDFcNZfWYC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN