Columbia subject headings:
Harvard subject headings:
Graphic artists--Soviet Union--Catalogs.
Graphic artists--Soviet Union--Exhibitions.
Sobolev, Dmitriĭ--Catalogs.
Sobolev, Dmitriĭ--Exhibitions.
Princeton subject headings:
Graphic artists--Soviet Union--Catalogs.
Graphic artists--Soviet Union--Exhibitions.
Sobolev, Dmitriĭ--Catalogs.
Sobolev, Dmitriĭ--Exhibitions.