The Truth in Psychological Egosim [1] by Hugh LaFollette in Reason and Responsibility, ed. J. Feinberg Wadsworth 1988 -http://www.etsu-tn.edu/philos/faculty/hugh/egoism.htm
Ethics: Origin and Development By Peter Kropotkin CHAPTER XII Development of Moral Teachings--XIX Century (Continued) - http://www.pitzer.edu/~dward/Anarchist_Archives/kropotkin/ethics/ch12.html
THE EGO AND HIS OWN by MAX STIRNER A Reproduction of the First English Edition. Translated from the German by Steven T. Byington -http://flag.blackened.net/daver/anarchism/stirner/theego0.html#contents