Παραπομπή APA
World Tourism Organization., & International Labour Organization. (2013). Economic crisis, international tourism decline and its impact on the poor. Madrid: World Tourism Organization.
Παραπομπή Chicago StyleWorld Tourism Organization., and International Labour Organization. Economic Crisis, International Tourism Decline and Its Impact On the Poor. Madrid: World Tourism Organization, 2013.
Παραπομπή MLAWorld Tourism Organization., and International Labour Organization. Economic Crisis, International Tourism Decline and Its Impact On the Poor. Madrid: World Tourism Organization, 2013.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.