Columbia subject headings:
Harvard subject headings:
Civilization, Western--History
Civilization, Western--Philosophy
Civilization--History
Civilization--Philosophy
Spengler, Oswald, 1880-1936--Influence.
Spengler, Oswald, 1880-1936. Untergang des Abendlandes.
Princeton subject headings:
Civilization--History.
Spengler, Oswald, 1880-1936--Influence.
Spengler, Oswald, 1880-1936. Untergang des Abendlandes.