Meeting Tourism Recovery Committee & World Tourism Organization Market Intelligence and Promotion Section. (2002). The impact of the September 11th attacks on tourism: The light at the end of the tunnel (April 2002). World Tourism Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)Meeting Tourism Recovery Committee και World Tourism Organization Market Intelligence and Promotion Section. The Impact of the September 11th Attacks on Tourism: The Light at the End of the Tunnel (April 2002). World Tourism Organization, 2002.
Παραπομπή σε μορφή MLA (8th εκδ.)Meeting Tourism Recovery Committee και World Tourism Organization Market Intelligence and Promotion Section. The Impact of the September 11th Attacks on Tourism: The Light at the End of the Tunnel (April 2002). World Tourism Organization, 2002.