Citazione Stile APA (7a Edizione)
(1999). Blue book: Payment systems in countries that have applied for membership of the European Union. European Central Bank.
Citazione stile Chigago Style (17a edizione)
Blue Book: Payment Systems in Countries That Have Applied for Membership of the European Union. Frankfurt am Main: European Central Bank, 1999.
Citatione MLA (9a ed.)
Blue Book: Payment Systems in Countries That Have Applied for Membership of the European Union. European Central Bank, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.