Citação norma APA
(1999). Blue book: Payment systems in countries that have applied for membership of the European Union. European Central Bank.
Citação norma Chicago
Blue Book: Payment Systems in Countries That Have Applied for Membership of the European Union. Frankfurt am Main: European Central Bank, 1999.
Citação norma MLA
Blue Book: Payment Systems in Countries That Have Applied for Membership of the European Union. European Central Bank, 1999.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.