APA (7th ed.) Citation

Keats, J. (1926). The poetical works of John Keats. Oxford University.

Chicago Style (17th ed.) Citation

Keats, John. The Poetical Works of John Keats. London: Oxford University, 1926.

MLA (9th ed.) Citation

Keats, John. The Poetical Works of John Keats. Oxford University, 1926.