Παραπομπή APA

World Tourism Organization. (2001). Outbound tourism of Spain: Market profile. Madrid: World Tourism Organization.

Παραπομπή Chicago Style

World Tourism Organization. Outbound Tourism of Spain: Market Profile. Madrid: World Tourism Organization, 2001.

Παραπομπή MLA

World Tourism Organization. Outbound Tourism of Spain: Market Profile. Madrid: World Tourism Organization, 2001.

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