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Comparative Genetic Characteristics of Soils of North America, USSR and Western Europe

Vladimir Markovich FridlandAleksandra Alekseevna Erokhina

出版	Soil Conservation Service, U.S. Department of Agriculture and the National Science Foundation, Washington, D.C., 1976
URL	http://books.google.com.hk/books?id=XK06AAAAMAAJ&hl=&source=gbs_api