United States. Bureau of Labor Statistics, ebrary, Inc, & Ryan, M. M. (2010). Handbook of U.S. labor statistics: Employment, earnings, prices, productivity, and other labor data (13th ed., 2010.). Bernan Press.
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Chicago Style (17th ed.) Zitazioa
United States. Bureau of Labor Statistics, Inc ebrary, eta Mary Meghan Ryan. Handbook of U.S. Labor Statistics: Employment, Earnings, Prices, Productivity, and Other Labor Data. 13th ed., 2010. Lanham, MD: Bernan Press, 2010.
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MLA (9th ed.) Zitazioa
United States. Bureau of Labor Statistics, et al. Handbook of U.S. Labor Statistics: Employment, Earnings, Prices, Productivity, and Other Labor Data. 13th ed., 2010. Bernan Press, 2010.
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