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Farm Depopulation and Its Associations with Changes in the Components of Agricultural Systems and Resources
Warren Douglas Slocum
其他書名
A Geographical Study of the Northern Appalachians in the Twentieth Century
出版Michigan State University. Department of Geography., 1976
URLhttp://books.google.com.hk/books?id=9zEEEeSq4f4C&hl=&source=gbs_api