Columbia subject headings:
Aesthetics--Philosophy.
Civilization--Philosophy.
Culture--Forecasting.
Culture--Philosophy.
Philosophy, Modern--20th century.
Sociology--Philosophy.
Harvard subject headings:
Aesthetics--Philosophy.
Civilization--Philosophy
Culture--Forecasting.
Culture--Philosophy
Philosophy, Modern--20th century.
Sociology--Philosophy
Princeton subject headings:
Philosophy, Modern--20th century.