<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Mackie, John Leslie. </hi>1974. <hi xmlns="http://www.tei-c.org/ns/1.0" rend="color(#000000)italic">The Cement of the Universe. A Study of Causation</hi> <hi xmlns="http://www.tei-c.org/ns/1.0" rend="color(#000000)">. Oxford: Clarendon Press.</hi>