Bŭlgarska narodna banka. (2004). Economic review. Bulgarian National Bank.
Cita Chicago Style (17a ed.)Bŭlgarska narodna banka. Economic Review. Sofia: Bulgarian National Bank, 2004.
Cita MLA (8a ed.)Bŭlgarska narodna banka. Economic Review. Bulgarian National Bank, 2004.
Precaución: Estas citas no son 100% exactas.