Title: Trinadesetii︠a︡t kongres na BKP i aktualnite problemi i zadachi na ideologicheskata rabota
Subjects: Bŭlgarska komunisticheska partii︠a︡. Kongres 1986 : Sofia, Bulgaria), Bŭlgarska komunisticheska partii︠a︡, Communist Propaganda, Congresses
Places: Bulgaria