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Revised Indexes of Factory Employment and Pay Rolls, 1919 to 1933, by Lewis E. Talbert and Alice Olenin of the Bureau of Labor Statistics. [U.S. Bureau of Labor Statistics Bulletin No. 610. Employment and Unemployment Series.].
出版1935
URLhttp://books.google.com.hk/books?id=oafqwQEACAAJ&hl=&source=gbs_api