Title: Internat︠s︡ionalnoto sŭtrudnichestvo mezhdu KPSS i BKP
Subjects: Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za, Bŭlgarska komunisticheska partii︠a︡, Relations, History, Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza
Places: Soviet Union, Bulgaria