Official Airline Guides, inc. (1991). OAG desktop flight guide (Worldwide ed.). Official Airline Guides.
Chicagoスタイル(17版)引用形式Official Airline Guides, inc. OAG Desktop Flight Guide. Worldwide ed. Oak Brook, Ill.: Official Airline Guides, 1991.
MLA(8版)引用形式Official Airline Guides, inc. OAG Desktop Flight Guide. Worldwide ed. Official Airline Guides, 1991.
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