Title: Spet︠s︡ialnata bibliografii︠a︡ v Bŭlgarii︠a︡
Subjects: Science, Information services, Library cooperation, Bŭlgarska akademii︠a︡ na naukite. T︠S︡entralna biblioteka, Bŭlgarska akademii︠a︡ na naukite, Bibliography, Information service, Bŭlgarska akademii͡a na naukite. T͡Sentralna biblioteka
Places: Bulgaria, Sofia, Bibliography