Cita APA (7th ed.)

Hughes, T., & Keegan, P. (2003). Collected poems (First edition.). Farrar, Straus and Giroux.

Cita Chicago (17th ed.)

Hughes, Ted, i Paul Keegan. Collected Poems. First edition. New York: Farrar, Straus and Giroux, 2003.

Cita MLA (9th ed.)

Hughes, Ted, i Paul Keegan. Collected Poems. First edition. Farrar, Straus and Giroux, 2003.