Columbia subject headings:
Christianity--Philosophy.
Kierkegaard, Søren, 1813-1855.
Ontology.
Harvard subject headings:
Christianity--Philosophy
Kierkegaard, Søren, 1813-1855--Ontology.
Ontology.
Princeton subject headings:
Christianity--Philosophy.
Kierkegaard, Søren, 1813-1855--Ontology.
Ontology.