International Air Transport Association. (2000). BSP Manual for agents effective 1 December 2000. The Association.
Chicago-viite (17. p.)International Air Transport Association. BSP Manual for Agents Effective 1 December 2000. Montreal: The Association, 2000.
MLA-viite (9. p.)International Air Transport Association. BSP Manual for Agents Effective 1 December 2000. The Association, 2000.
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