Dyfyniad APA

Official Airline Guides, inc. Airline map of the United States. American Aviation Publications.

Dyfyniad Arddull Chicago

Official Airline Guides, inc. Airline Map of the United States. [Chicago, Ill.: American Aviation Publications.

Dyfyniad MLA

Official Airline Guides, inc. Airline Map of the United States. American Aviation Publications.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.