Title: Druzhba ot vekove za vekove : rechi, statii, izkazvanii︠a︡ za bŭlg.-sŭv. druzhba, Velikata okt. sot︠s︡ialist. revoli︠u︡t︠s︡ii︠a︡, Sŭv. sŭi︠u︡z /
Authors: Zhivkov, Todor.; Balev, Milko.
Publisher: Partizdat,
Year: 1977
Subjects: Bulgaria Relations Soviet Union.; Soviet Union Relations Bulgaria.; Soviet Union