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Protecting National Park Soundscapes
e-bok,
2013,
Engelsk,
ISBN 9780309285438
America's national parks provide a wealth of experiences to millions of people every year. What visitors see-landscapes, wildlife, cultural activities-often lingers in memory for …
Fra
45,-
Science and the National Parks
e-bok,
1992,
Engelsk,
ISBN 9780309584845
The U.S. National Park Service needs much better scientific information to protect the nation's parks for future generations, and research must be an essential element in its …