They Are, Where They are Changing, David F. Wells and John D. Woodbridge, Abington Press, Nashville, 1975 A Nation of Believers, Martin Marty, Univ. Chicago Press, Chicago, 1976 Conversion: Christian and Non-Christian, Alfred C. Underwood, George Allen, Unwin Ltd., London, 1925 Eros and the Sacred, Paul Avis,

leship, David Watson, Hodder and Stoughton, London, 1981. Mysticism. Evelyn Underwood, Dutton, N.Y. 1911. A Nation of Believers Martin Marty, Univ. Chicago Press, Chicago. 1976. Introduction to Percolation Theory. Dietrich Stauffer. Taylor and Francis. London. 1985. Modern Theory of Critical Phenomena. Shang

gion explained: The evolutionary origins of religious thought. New York, Basic Books; Wilson, D.S. (2002). Darwin's Cathedral. Chicago: University of Chicago Press; Sosis, R., & Bressler, E.R. (2003). Cooperation and commune longevity: a test of the costly signaling theory of religion. Cross-cultural Research, 3