Series: | CBO papers. |
Publisher:
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[Washington, DC] : Congress of the United States, Congressional Budget Office, [2003] |
Phys. Desc.:
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1 online resource (xiv, 50 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.] : U.S. Customs and Border Protection, [2006] |
Phys. Desc.:
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34 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, D.C.] : U.S. Govt. Accountability Office, [2009] |
Phys. Desc.:
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1 online resource (ii, 34 pages) : color illustrations, color map
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Digital Content
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Click for online content. |
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