APA (7th ed.) Citation

Keats, J., & Sharrock, R. (1965). Selected poems and letters. Oxford University Press.

Chicago Style (17th ed.) Citation

Keats, John, and Roger Sharrock. Selected Poems and Letters. [London]: Oxford University Press, 1965.

MLA (9th ed.) Citation

Keats, John, and Roger Sharrock. Selected Poems and Letters. Oxford University Press, 1965.