Παραπομπή σε μορφή APA (7η εκδ.)

World Tourism Organization. (1996). What tourism managers need to know: A practical guide to the development and use of indicators of sustainable tourism. World Tourism Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Tourism Organization. What Tourism Managers Need to Know: A Practical Guide to the Development and Use of Indicators of Sustainable Tourism. World Tourism Organization, 1996.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Tourism Organization. What Tourism Managers Need to Know: A Practical Guide to the Development and Use of Indicators of Sustainable Tourism. World Tourism Organization, 1996.