Columbia subject headings:
Historiography--Soviet Union--History--18th century.
Russia--History--1689-1801--Historiography.
Soviet Union--History--Philosophy.
Harvard subject headings:
Historiography--Soviet Union--History--18th century.
Russia--History--1689-1801.
Soviet Union--History--Philosophy.
Princeton subject headings:
Historiography--Russia--History--18th century.
Russia--History--1689-1801--Historiography.
Russia--History--Philosophy.