APA (7th ed.) Citation

Hamilton, I. (1996). The Oxford companion to twentieth-century poetry in English. Oxford University Press.

Chicago Style (17th ed.) Citation

Hamilton, Ian. The Oxford Companion to Twentieth-century Poetry in English. Oxford: Oxford University Press, 1996.

MLA (9th ed.) Citation

Hamilton, Ian. The Oxford Companion to Twentieth-century Poetry in English. Oxford University Press, 1996.