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Social and Economic Characteristics of the Population in Metro and Nonmetro Counties, 1970
Fred K. HinesDavid Louis BrownJohn M. Zimmer
出版Economic Research Service, U.S. Department of Agriculture, 1975
URLhttp://books.google.com.hk/books?id=58yKqAHTAcgC&hl=&source=gbs_api
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