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Google圖書搜尋
Communicating Appropriate Behavior in Occupied Grizzly Bear Habitat to Backcountry Visitors
Amy Braithwaite Molitor
Stephen F. McCool
出版
Institute for Tourism and Recreation Research, School of Forestry, University of Montana
, 1992
URL
http://books.google.com.hk/books?id=L7MrAQAAMAAJ&hl=&source=gbs_api