00864nam a22002177a 4500 1/24011 041130s2002 enk 00010 eng d 9284405459 25743 DLC GR-PeUP 338.479 1 TOU Tourism : a catalyst for sustainable development in Africa, Abuja, Nigeria, 26 - 27 April 2002 Le Tourisme : catalyseur de developpement durable en Afrique, Abuja, Nigeria 26 - 27 Avril 2002 Madrid, Spain : World Tourism Organization, 2002 136 σ. ; 30 εκ. Ecotourism Africa. Tourism Economic aspects Africa. Sustainable development Africa. World Tourism Organization. INST UNIPILB MAIN 20041130 338.479 1 TOU 00144730 00144730 LOAN 0 1 /webopac/covers/02/25743_9284405459.jpg