Columbia subject headings:
Heidegger, Martin, 1889-1976--Criticism and interpretation.
Harvard subject headings:
Heidegger, Martin, 1889-1976
Ontology--History--20th century.
Space and time--History--20th century.
Princeton subject headings:
Heidegger, Martin, 1889-1976.
Ontology--History--20th century.
Space and time--History--20th century.