National parks : playground or paradise /
Sumario: Controversia en las políticas del servicio de parques nacionales de Estado Unidos en cuanto a restricciones sobre el uso de éstos por parte del público.Como por ejemplo el Yellowstone, Yosemite y el Gran Cañon.
Other Authors: | Johnson, Peter C. (Editor/a) |
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Format: | Book |
Language: | English |
Published: |
Pittsburgh :
National Geographic Society,
1984.
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Subjects: |
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