Columbia subject headings:
Harvard subject headings:
Russia (Federation)--History--1991---Textbooks.
Russia--History--Nicholas II, 1894-1917--Textbooks.
Soviet Union--History--Textbooks.
Princeton subject headings:
Russia (Federation)--History--1991---Textbooks.
Russia--History--Nicholas II, 1894-1917--Textbooks.
Soviet Union--History--Textbooks.