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A Graphic Summary of Farm Labor and Population
Josiah Chase FolsomOliver Edwin Baker
其他書名
Based Largely on the Census of 1930 and 1935
出版U.S. Department of Agriculture, 1937
URLhttp://books.google.com.hk/books?id=yoyR6Kk5pIMC&hl=&source=gbs_api
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