W. M. S. Russell and R. L. Burch, The Principles of Humane Experimental Technique (London: Methuen, 1959).
150
P. Singer, Animal Liberation: The Definitive Classic of the Animal Movement (New York: HarperCollins, 2009).
151
“The Cambridge Declaration on Consciousness,” Francis Crick Memorial Conference, July 7, 2012, http://fcmconference.org/img/Cambridge DeclarationOnConsciousness.pdf, retrieved August 3, 2016.
