Title: Usŭvŭrshenstvuvane na vŭnshnoikonomicheskite otnoshenii︠a︡ na NRB s nesot︠s︡ialisticheskite strani v svetlinata na reshenii︠a︡ta na XII kongres na BKP
Subjects: Foreign economic relations, Bŭlgarska komunisticheska patii︠a︡. Kongres 1981 : Sofia, Bulgaria)
Places: Bulgaria