Columbia subject headings:
Folklore.
Keats, John, 1795-1821--Knowledge and learning.
Mythology in literature.
Harvard subject headings:
Keats, John, 1795-1821--Knowledge--Mythology.
Mythology in literature.
Princeton subject headings:
Keats, John, 1795-1821--Characters--Poets.
Myth in literature.
Poets in literature.