Columbia subject headings:
Communism--Ukraine--Congresses.
Komunistychna partii͡a Ukraïny. Konferent͡sii͡a (4th : 1920 : Kharkov, Ukraine)
Harvard subject headings:
Komunistychna partii︠a︡ Ukraïny Conference (4th : Kharkov : 1920)
Princeton subject headings: