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Proceedings, National Wilderness Research Conference
其他書名
Issues, State-of-knowledge, Future Directions, Fort Collins, CO, July 23-26, 1985
出版U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, 1987
URLhttp://books.google.com.hk/books?id=2113mXCnoh8C&hl=&source=gbs_api
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