Columbia subject headings:
Belli, Giuseppe Gioachino, 1791-1863--In literature.
Keats, John, 1795-1821--In literature.
Harvard subject headings:
Belli, Giuseppe Gioachino, 1791-1863, in fiction, drama, poetry, etc.
Keats, John, 1795-1821, in fiction, drama, poetry, etc.
Poets--Fiction
Princeton subject headings:
Belli, Giuseppe Gioachino, 1791-1863--Fiction.
Fiction.
Keats, John, 1795-1821--Fiction.
Poets, English--19th century--Fiction.