International Air Transport Association. (2000). BSP Manual for agents effective 1 December 2000. The Association.
Cita Chicago (17th ed.)International Air Transport Association. BSP Manual for Agents Effective 1 December 2000. Montreal: The Association, 2000.
Cita MLA (9th ed.)International Air Transport Association. BSP Manual for Agents Effective 1 December 2000. The Association, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.