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» Тема, жанр, tags: National parks and reserves -- United States -- Management.
Science and the National Parks
pdf
Author:
National Research Council
,
Division on Earth and Life Studies
,
Environment and Resources Commission on Geosciences
,
Committee on Improving the Science and Technology Programs of the National Park Service
Language:
English
Year:
1992
0
0
01.03.2024
0
0
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Uncertain path : a search for the future of national parks
pdf
Author:
William C. Tweed Jonathan B. Jarvis
Language:
English
Year:
2010
0
0
27.01.2024
0
0
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