Παραπομπή σε μορφή APA (7η εκδ.)

General Agreement on Trade in Services (1994) & World Tourism Organization. GATS implicators for tourism: The general agreement on trade in services and tourism. World Tourism Organization, 1995.

Παραπομπή σε μορφή Chicago (17η εκδ.)

General Agreement on Trade in Services (1994) και World Tourism Organization. GATS Implicators for Tourism: The General Agreement on Trade in Services and Tourism. Madrid: World Tourism Organization, 1995.

Παραπομπή σε μορφή MLA (9th εκδ.)

General Agreement on Trade in Services (1994) και World Tourism Organization. GATS Implicators for Tourism: The General Agreement on Trade in Services and Tourism. World Tourism Organization, 1995.