Cita APA (7th ed.)

KEATS, J., & Robertson, M. (1909). Poems published in 1820. Clarendon Press.

Cita Chicago (17th ed.)

KEATS, John, i M. Robertson. Poems Published in 1820. Oxford: Clarendon Press, 1909.

Cita MLA (9th ed.)

KEATS, John, i M. Robertson. Poems Published in 1820. Clarendon Press, 1909.