Columbia subject headings:
Berlin, Isaiah, 1909-1997.
Civilization, Modern--20th century.
Civilization--Philosophy.
History, Modern--20th century.
History--Philosophy.
Philosophy, Modern--20th century.
Harvard subject headings:
Berlin, Isaiah, 1909-1997
Civilization, Modern--20th century
Civilization--Philosophy
History, Modern--20th century
History--Philosophy
Philosophy, Modern--20th century
Princeton subject headings:
Berlin, Isaiah, 1909-1997--Bibliography.
History--Philosophy.