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Publisher:
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[Washington, D.C.] : Assessment and Standards Division, Office of Transportation and Air Quality, U.S. Environmental Protection Agency, 2012. |
Phys. Desc.:
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1 online resource (iii, 83 pages) : illustrations
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Digital Content
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Click for online content. |
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Publisher:
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[Washington, D.C.] : United States Environmental Protection Agency, Office of Transportation and Air Quality, 2013. |
Edition:
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Revised April 4, 2013. |
Phys. Desc.:
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1 online resource (21 pages) : illustration (some color)
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Digital Content
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Click for online content. |
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Publisher:
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[Washington, D.C : U.S. Environmental Protection Agency, Office of Transportation and Air Quality, 2006] |
Phys. Desc.:
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1 online resource ([2] pages) : color illustrations
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Digital Content
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Click for online content. |
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Publisher:
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[Washington, D.C.] : U.S. Environmental Protection Agency, Air and Radiation, Office of Transportation and Air Quality, 2002. |
Phys. Desc.:
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1 online resource (4 pages)
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Digital Content
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Click for online content. |
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Publisher:
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[Washington, D.C.] : U.S. Environmental Protection Agency, Air and Radiation, Office of Transportation and Air Quality, 2002. |
Phys. Desc.:
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1 online resource (3 pages)
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Digital Content
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Click for online content. |
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