Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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

Atenció: Aquestes cites poden no estar 100% correctes.