Παραπομπή APA

World Tourism Organization. (2003). Sustainable Development of Ecotourism: A Compilation of Good Practices in SMEs. [Madrid]: World Tourism Organization.

Παραπομπή Chicago Style

World Tourism Organization. Sustainable Development of Ecotourism: A Compilation of Good Practices in SMEs. [Madrid]: World Tourism Organization, 2003.

Παραπομπή MLA

World Tourism Organization. Sustainable Development of Ecotourism: A Compilation of Good Practices in SMEs. [Madrid]: World Tourism Organization, 2003.

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