Παραπομπή σε μορφή APA (7η εκδ.)

World Tourism Organization. (2010). Practical guide for the development of biodiversity-based tourism products. World Tourism Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Tourism Organization. Practical Guide for the Development of Biodiversity-based Tourism Products. Madrid: World Tourism Organization, 2010.

Παραπομπή σε μορφή MLA (9th εκδ.)

World Tourism Organization. Practical Guide for the Development of Biodiversity-based Tourism Products. World Tourism Organization, 2010.