Cita APA (7th ed.)

Matthews, G. (1971). John Keats: The critical heritage. Routledge.

Cita Chicago (17th ed.)

Matthews, G.M. John Keats: The Critical Heritage. London: Routledge, 1971.

Cita MLA (9th ed.)

Matthews, G.M. John Keats: The Critical Heritage. Routledge, 1971.