00861nam a2200229 a 4500 1/23692 041104s2000 enk 00010 eng d 9284403723 25421 DLC GR-PeUP 338.479 1 SUS Sustainable development of tourism : a compilation of good practices = desarrolo sostenible del turismo : una complilacion de buenas practicas Madrid, Spain : World Tourism Organization, 2000 185 σ. ; 30 εκ. Ecotourism. Tourism Environmental aspects. Sustainable development. Ecotourisme Repertoires. Tourisme Repertoires. World Tourism Organization. INST UNIPILB MAIN 20041104 338.479 1 SUS 00144718 00144718 LOAN 0 1 /webopac/covers/02/25421_9284403723.jpg