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- [1] Cultural landscapes and the US National Park Service BORDERLANDS: THE SHARED CANADIAN AND U.S. EXPERIENCE OF LANDSCAPE, 2002, : 17 - 21
- [3] Managing historic military earthforms in the US National Park Service BORDERLANDS: THE SHARED CANADIAN AND U.S. EXPERIENCE OF LANDSCAPE, 2002, : 79 - 88
- [5] Remarks by the Director of the US Bureau of Land Management TRANSACTIONS OF THE SIXTY-EIGHTH NORTH AMERICAN WILDLIFE AND NATURAL RESOURCES CONFERENCE, 2003, : 7 - 14
- [7] The role of the US geological survey in science delivery to The National Park Service Protecting Our Diverse Heritage: The Role of Parks, Protected Areas, and Cultural Sites, 2004, : 7 - 9
- [8] A macroecological perspective on strategic bat conservation in the US National Park Service ECOSPHERE, 2016, 7 (11):