Columbia subject headings:
History--Periodicals--Indexes.
Istorik-marksist--Indexes.
Soviet Union--History--Periodicals--Indexes.
Harvard subject headings:
History--Periodicals--Indexes.
Istorik-marksist--Indexes.
Soviet Union--History--Periodicals--Indexes.
Princeton subject headings:
History--Periodicals--Indexes.
Istorik-Marksist--Indexes.
Soviet Union--History--Periodicals--Indexes.