1. Abrams, Meyer Howard (1953). The Mirror and the Lamp: Romantic Theory and the Critical Tradition, Oxford University Press.
2. Fathers of the English Dominican Province (1920). Summa Theologica, Burns, Oates, and Washbourne.
3. Arendt, Hannah (1994). The Origins of Totalitarianism, Harcourt. First published 1951.
4. Emerson, Stephen (1996). The Politics, Cambridge University Press.
5. Berger, Peter (1969). The Sacred Canopy, Anchor Books.