Title: Dvanadeseti kongres na Bŭlgarskata komunisticheska partii͡a, 31 mart-4 april 1981 godina
Subjects: Bŭlgarska komunisticheska partii︠a︡, Communism, Congresses, Economic conditions, Politics and government
Places: Bulgaria
Time periods: 1944-1989, 1944-1990