Lua APA (7ú heag.)

International Transport Workers' Federation (ITF). (1999). Panorama ITF de l'aviation civile 1999. Bruxelles: ITF.

Lua i Stíl Chicago (17ú heag.)

International Transport Workers' Federation (ITF). Panorama ITF De L'aviation Civile 1999. Bruxelles: ITF, 1999.

Lua MLA (8ú heag.)

International Transport Workers' Federation (ITF). Panorama ITF De L'aviation Civile 1999. Bruxelles: ITF, 1999.

Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.