Publisher:
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[Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [2003] |
Phys. Desc.:
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1 electronic text : HTML 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, 1999. |
Phys. Desc.:
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1 online resource (iii, 196 pages) : illustrations, map
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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, 1998. |
Phys. Desc.:
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1 online resource (iii, 112 pages) : illustrations
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Digital Content
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Click for online content. |
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Series: | Natural resources report ; 2006/016. |
Publisher:
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Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2006. |
Edition:
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Version 2.11 October 2006. |
Phys. Desc.:
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1 online resource (xiv, 386 pages) : color illustrations, color maps
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Digital Content
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Click for online content. |
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