International Air Transport Association. (2000). BSP Manual for agents effective 1 December 2000. The Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Air Transport Association. BSP Manual for Agents Effective 1 December 2000. Montreal: The Association, 2000.
एमएलए (9वां संस्करण) प्रशस्ति पत्रInternational Air Transport Association. BSP Manual for Agents Effective 1 December 2000. The Association, 2000.
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