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期刊论文 [1]
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2019 [1]
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globalchange

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Attendance trends threaten future operations of America's state park systems [期刊论文]
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019-01-01, 116 (26) : 12775-12780
Smith, Jordan W.;  Wilkins, Emily J.;  Leung, Yu-Fai
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