Title: Tsentrizmǔt i bǔlgarskoto sotsialistichesko dvizhenie
First published: 1969
Subjects: Bŭlgarska komunisticheska partii︠a︡, Bŭlgarska rabotnicheska sot︠s︡ialdemokraticheska partii︠a︡
LC classification: JN9609 A8 S763