Publisher:
|
[Washington, D.C.] : U.S. Environmental Protection Agency, 2008. |
Phys. Desc.:
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1 online resource ([1] page)
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Digital Content
|
Click for online content. |
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Series: | CRS report ; R44738. |
Publisher:
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[Washington, D.C.] : Congressional Research Service, [2018?]- |
Edition:
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[Library of Congress public edition]. |
Phys. Desc.:
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1 online resource.
|
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 Water, [2009] |
Phys. Desc.:
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1 online resource (2 volumes) : colored illustrations
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Digital Content
|
Click for online content. |
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Publisher:
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[Reston, Va.] : Department of the Interior, U.S. Geological Survey, [2001]- |
Phys. Desc.:
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1 online resource
|
Digital Content
|
Click for online content. |
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Publisher:
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Washington : U.S. Government Printing Office, 2014. |
Phys. Desc.:
|
1 online resource (x, 51 pages)
|
Digital Content
|
Click for online content. |
|
Publisher:
|
[Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [2002] |
Phys. Desc.:
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1p. : digital, PDF file.
|
Digital Content
|
Click for online content. |
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