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Publisher:
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Washington : U.S. G.P.O., 2009. |
Phys. Desc.:
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iii, 61 pages : digital, PDF file.
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Digital Content
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Click for online content. |
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Series: | BLS working papers (Online) ; 512. |
Publisher:
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[Washington, D.C.] : U.S. Department of Labor, U.S. Bureau of Labor Statistics, Office of Productivity and Technology, 2019. |
Phys. Desc.:
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1 online resource (approximately 41 pages) : illustration.
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Digital Content
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Click for online content. |
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Publisher:
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Washington : U.S. G.P.O., 2007. |
Phys. Desc.:
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iii, 129 pages : digital, PDF file
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Digital Content
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Click for online content. |
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