APA (7th ed.) Citation

Bloom, H. (2011). Twentieth-century British poets. Bloom's Literary Criticism.

Chicago Style (17th ed.) Citation

Bloom, Harold. Twentieth-century British Poets. New York: Bloom's Literary Criticism, 2011.

MLA (9th ed.) Citation

Bloom, Harold. Twentieth-century British Poets. Bloom's Literary Criticism, 2011.