Columbia subject headings:
Philosophy and religion--History--To 1500.
Religion--Philosophy--History--To 1500.
Harvard subject headings:
Neoplatonism.
Philosophy and religion--History--To 1500.
Philosophy, Ancient.
Philosophy--History--To 1500.
Platonists.
Religion--History
Religion--Philosophy--History
Religion--Philosophy--History--To 1500.
Princeton subject headings:
Philosophy and religion--History--To 1500.
Religion--Philosophy--History--To 1500.