Cita APA (7a ed.)

Zettersten, A. (2011). J.R.R. Tolkien's double worlds and creative process: Language and life. Palgrave Macmillan.

Cita Chicago Style (17a ed.)

Zettersten, Arne. J.R.R. Tolkien's Double Worlds and Creative Process: Language and Life. New York: Palgrave Macmillan, 2011.

Cita MLA (8a ed.)

Zettersten, Arne. J.R.R. Tolkien's Double Worlds and Creative Process: Language and Life. Palgrave Macmillan, 2011.