1. Plato (2003) The symposium, Revised edn. Penguin Classics, London
2. Aristotle (1998) The metaphysics, Revised edn. Penguin Classics, London
3. Kant I (2007) The critique of judgement, Revised. Oxford University Press, Oxford
4. Alberti L (1988) De Re Aedificatoria: on the art of building in ten books, Revised. MIT Press, Cambridge Massachusetts
5. Hall W (2015) Brick, 1st edn. Phaidon, New York