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Publisher:
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[Washington, D.C.] : Cave and Karst Programs, 1998- |
Phys. Desc.:
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1 online resource
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Digital Content
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Click for online content. |
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Series: | Natural resources report ; 2014/898. |
Publisher:
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Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2014. |
Phys. Desc.:
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1 online resource (xiii, 66 pages) : color illustrations, color 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, D.C.] : U.S. Govt. Accountability Office, [2009] |
Phys. Desc.:
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1 online resource (iii, 89 pages) : illustrations (some color), maps
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Digital Content
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Click for online content. |
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