Series: | Technology news ; no. 490. |
Publisher:
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[Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2001] |
Phys. Desc.:
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[2] p. : digital, PDF file
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Digital Content
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Click for online content. |
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Series: | Technology news ; no. 489. |
Publisher:
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[Pittsburgh, PA] : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, [2001] |
Phys. Desc.:
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[2] p. : digital, PDF file
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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. Government Printing Office, 2010. |
Phys. Desc.:
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1 online resource (iii, 69 pages) : illustrations
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Digital Content
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Click for online content. |
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