1. Altmann, Gerry T. M. 1997. The Ascent of Babel: An Exploration of Language, Mind, and Understanding. Oxford: Oxford University Press.
2. Amazon. n.d. “Kindle Oasis E-reader—Graphite, Waterproof, 7” High-Resolution Display (300 ppi), Built-In Audible, 8 GB Wi-Fi.” Accessed March 1, 2019. https://www.amazon.co.uk/dp/B06XDK92KS/ref=ods_cc_eink_cog.
3. ———. n.d. “Kindle Paperwhite–Previous Generation (7th), 6” Display, Built-in Light, Wi-Fi, Black, with Special Offers.” Accessed March 1, 2019. https://www.amazon.co.uk/dp/B00QJDO0QC/ref=ods_cc_eink_mu.
4. ———. n.d. “Kindle Voyage E-reader, 6” High-Resolution Display (300 ppi) with Adaptive Built-in Light, PagePress Sensors, Wi-Fi—Includes Special Offers.” Accessed March 1, 2019. https://www.amazon.com/Amazon-Kindle-Voyage-6-Inch-4GB-eReader/dp/B00IOY8XWQ.
5. Augustine, Saint. 1992. Confessions. Translated by Henry Chadwick. Oxford: Oxford University Press.