Dyfyniad APA

International Civil Aviation Organization. (1970). International signs to facilitate passengers using airports.

Dyfyniad Arddull Chicago

International Civil Aviation Organization. International Signs to Facilitate Passengers Using Airports. Montrealn, 1970.

Dyfyniad MLA

International Civil Aviation Organization. International Signs to Facilitate Passengers Using Airports. 1970.

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