APA

(1999). [ONE hundred and twenty] 120 Years Bulgarian National Bank 1879 - 1999. Sofia: BNB.

Chicago

1999. [ONE hundred and twenty] 120 Years Bulgarian National Bank 1879 - 1999. Sofia: BNB.

Harvard

(1999). [ONE hundred and twenty] 120 Years Bulgarian National Bank 1879 - 1999. Sofia: BNB.

MLA

[ONE hundred and twenty] 120 Years Bulgarian National Bank 1879 - 1999. Sofia: BNB. 1999.