Tourism in national parks and protected areas : planning and management / Paul F.J. Eagles, Department of Recreation and Leisure Studies, University of Waterloo, Canada and Stephen F. McCool, School of Forestry, The University of Montana, USA ; with contributions by Elizabeth A. Halpenny and R. Neil Moisey..    Wallingford, Oxfordshire, UK : CABI, 2002.  ?002 . 1 online resource (xii, 320 pages)
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