World Conference on Tourism Communications & World Tourism Organization. (2004). Observations on international tourism communications: Report from the First World Conference on Tourism Communications, Madrid, Spain, 29-30 January 2004. World Tourism Organization.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Conference on Tourism Communications και World Tourism Organization. Observations on International Tourism Communications: Report from the First World Conference on Tourism Communications, Madrid, Spain, 29-30 January 2004. World Tourism Organization, 2004.
Παραπομπή σε μορφή MLA (8th εκδ.)World Conference on Tourism Communications και World Tourism Organization. Observations on International Tourism Communications: Report from the First World Conference on Tourism Communications, Madrid, Spain, 29-30 January 2004. World Tourism Organization, 2004.