Rechnik na bŭlgarskiia ezik /
Cholakova, Kristalina.
Institut za bŭlgarski ezik (Bŭlgarska akademiia na naukite)
Sofiia : Izd-vo na bŭlgarskata akademiia na naukite,
1977-
At head of title: Bŭlgarska akademiia na naukite, Institut za bŭlgarski ezik
v. 1-15
Bulgarian language