Παραπομπή APA

World Tourism Organization. (2002). The World ecotourism summit, Quebec City, Canada, 19 to 22 May 2002: Final report. Madrid, Spain: World Tourism Organization.

Παραπομπή Chicago Style

World Tourism Organization. The World Ecotourism Summit, Quebec City, Canada, 19 to 22 May 2002: Final Report. Madrid, Spain: World Tourism Organization, 2002.

Παραπομπή MLA

World Tourism Organization. The World Ecotourism Summit, Quebec City, Canada, 19 to 22 May 2002: Final Report. Madrid, Spain: World Tourism Organization, 2002.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.