Citazione APA

Official Airline Guides, inc. Official airline guide (Quick reference international ed.). Official Airline Guide, Reuben H. Donnelley Corp., -1972.

Stile di citazione Chicago

Official Airline Guides, inc. Official Airline Guide. Quick reference international ed. Oak Brook, Ill.: Official Airline Guide, Reuben H. Donnelley Corp., -1972.

Citazione MLA

Official Airline Guides, inc. Official Airline Guide. Quick reference international ed. Official Airline Guide, Reuben H. Donnelley Corp., -1972.