An integrative approach to tourism: lessons from the Andes of Peru / Ross E. Mitchell, Paul F. J. Eagles
The encyclopedia of ecotourism / David B. Weaver [et al.]
COTA(S): 8421
Sustainable tourism in protected areas : guidelines for planning and management / Paul F. J. Eagles, Stephen F. McCool, Christopher D. Haynes
COTA(S): 9022