6Frederick Pollock and Frederic William Maitland, The History of Englishlaw before the Time of Edward I, 2nd ed. reissued; with a new introduction and select bibliography by S. F. C. Milsom, Cambridge University Press, 1968.
7Oliver Wendel Holmes, Jr., The Common Law, Little, Brown, and Company, 1948.
8E.E. Evans-Pritchard, Theories of primitive religion, Clarendon Press, 1965.
