Παραπομπή σε μορφή APA (7η εκδ.)

World Tourism Organization & European Travel Commission. (2010). Budgets of national tourism organizations 2008-2009. World Tourism Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Tourism Organization και European Travel Commission. Budgets of National Tourism Organizations 2008-2009. Madrid: World Tourism Organization, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

World Tourism Organization και European Travel Commission. Budgets of National Tourism Organizations 2008-2009. World Tourism Organization, 2010.