Columbia subject headings:
Harvard subject headings:
Communist International. Congress (7th : 1935 : Moscow, Russia)
Communist parties--Congresses.
Mezhdunarodnyĭ nauchno-teoreticheskiĭ simpozium Kommunisty v borʹbe za edinstvo demokraticheskikh i antiimperialisticheskikh sil (1975 : Prague, Czechslovakia)
Princeton subject headings:
Communist parties--Congresses.