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Soil Survey of Kingman County, Kansas

Edmund Wilhelm KnobelR. O. LewisC. E. Dornberger

出版	U.S. Bureau of Chemistry and Soils, 1938
URL	http://books.google.com.hk/books?id=8IXVW8TfgvIC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN