Παραπομπή σε μορφή APA (7η εκδ.)

Pacific Asia Travel Association. (1991). Air travel congestion in the Asia Pacific region: A selected bibliography. The Intelligence Centre, Pacific Asia Travel Association.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pacific Asia Travel Association. Air Travel Congestion in the Asia Pacific Region: A Selected Bibliography. San Francisco, CA: The Intelligence Centre, Pacific Asia Travel Association, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pacific Asia Travel Association. Air Travel Congestion in the Asia Pacific Region: A Selected Bibliography. The Intelligence Centre, Pacific Asia Travel Association, 1991.