Columbia subject headings:
Harvard subject headings:
Existentialism.
Grupo Hiperión.
Mexico--Civilization.
National characteristics, Mexican.
Philosophy, Mexican--20th century.
Philosophy--Mexico.
Princeton subject headings:
Grupo Filosófico Hiperión--History.
Mexico City (Mexico)--Intellectual life--20th century.
National characteristics, Mexican.
Philosophy, Mexican--20th century.