Columbia subject headings:
Duns Scotus, John, approximately 1266-1308.
Ontology.
Philosophy, Medieval.
Harvard subject headings:
Duns Scotus, John, approximately 1266-1308.
Ontology.
Philosophy, Medieval.
Princeton subject headings:
Duns Scotus, John, approximately 1266-1308.
Ontology.
Philosophy, Medieval.