APA (7th ed.) Citation

Keats, J., & Bush, D. (1959). Selected poems and letters. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Keats, John, and Douglas Bush. Selected Poems and Letters. Boston: Houghton Mifflin, 1959.

MLA (9th ed.) Citation

Keats, John, and Douglas Bush. Selected Poems and Letters. Houghton Mifflin, 1959.