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Soil Sampler with Metal Foils

Walter KjellmanStatens geotekniska institut (Sweden)Torsten KallsteniusO. Wager

其他書名	Device for Taking Undisturbed Samples of Very Great Length
出版	The Institute, 1950
URL	http://books.google.com.hk/books?id=P5qgGwAACAAJ&hl=&source=gbs_api