APA (7th ed.) Citation

Institut za istorii︠a︡ (Bŭlgarska akademii︠a︡ na naukite) & Kosev, D. K. (1954). Istorii︠a︡ na Bulgarii︠a︡. [publisher not identified].

Chicago Style (17th ed.) Citation

Institut za istorii︠a︡ (Bŭlgarska akademii︠a︡ na naukite) and Dimitŭr Konstantinov Kosev. Istorii︠a︡ Na Bulgarii︠a︡. Sofii︠a︡: [publisher not identified], 1954.

MLA (9th ed.) Citation

Institut za istorii︠a︡ (Bŭlgarska akademii︠a︡ na naukite) and Dimitŭr Konstantinov Kosev. Istorii︠a︡ Na Bulgarii︠a︡. [publisher not identified], 1954.