Citazione APA

Official Airline Guides, inc. (1991). OAG desktop flight guide (Worldwide ed.). Official Airline Guides.

Stile di citazione Chicago

Official Airline Guides, inc. OAG Desktop Flight Guide. Worldwide ed. Oak Brook, Ill.: Official Airline Guides, 1991.

Citazione MLA

Official Airline Guides, inc. OAG Desktop Flight Guide. Worldwide ed. Official Airline Guides, 1991.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.