*Chad (April 9, 2012). [http://truthbomb.blogspot.com/2012/04/cs-lewis-on-rationality-and-materialism.html "C.S. Lewis on rationality and materialism"]. Truthbomb Apologetics. Retrieved on October 6, 2014.</ref> | *Chad (April 9, 2012). [http://truthbomb.blogspot.com/2012/04/cs-lewis-on-rationality-and-materialism.html "C.S. Lewis on rationality and materialism"]. Truthbomb Apologetics. Retrieved on October 6, 2014.</ref> |