Não informado. (1990). Public Transport International. International Union of Public Transport.
Style de citation Chicago (17e éd.)Não informado. Public Transport International. Bruxelles: International Union of Public Transport, 1990.
Style de citation MLA (8e éd.)Não informado. Public Transport International. International Union of Public Transport, 1990.
Attention : ces citations peuvent ne pas être correctes à 100%.