World Tourism Organization & European Commission. (2001). Protection of children from sexual exploitation in tourism: Tourism training module for future tourism professionals. World Tourism Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Tourism Organization και European Commission. Protection of Children from Sexual Exploitation in Tourism: Tourism Training Module for Future Tourism Professionals. Madrid: World Tourism Organization, 2001.
Παραπομπή σε μορφή MLA (9th εκδ.)World Tourism Organization και European Commission. Protection of Children from Sexual Exploitation in Tourism: Tourism Training Module for Future Tourism Professionals. World Tourism Organization, 2001.
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