00647nam a2200181 4500 1/22658 021220s1999 enk 000 0 eng 24113 DLC GR-PeUP 333.78 SUS Sustainable development of tourism : an annotated bibliography. No. 2, November 1999 Madrid : World Trade Organization, 1999 118 σ.: 30 εκ. Ecotourism Bibliography. Tourism Environmental aspects Bibliography. Tourism Bibliography. World Trade Organization. INST UNIPILB MAIN 20050302 333.78 SUS 00144760 00144760 LOAN 0 1