Columbia subject headings:
Civilization, Modern--19th century.
Civilization, Modern--20th century.
Methodology.
Philosophy and civilization.
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Harvard subject headings:
Civilization, Modern--19th century
Civilization, Modern--20th century
Methodology.
Philosophy and civilization.
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Princeton subject headings:
Civilization, Modern--19th century.
Civilization, Modern--20th century.
Methodology.
Philosophy and civilization.
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.