International Maritime Organization. (1995). International signs to provide guidance to persons at airports and marine terminals. IMO.
Citazione stile Chigago Style (17a edizione)International Maritime Organization. International Signs to Provide Guidance to Persons at Airports and Marine Terminals. Londres: IMO, 1995.
Citatione MLA (9a ed.)International Maritime Organization. International Signs to Provide Guidance to Persons at Airports and Marine Terminals. IMO, 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.