1. See Richard Foltz, Religions of the Silk Road (New York: Palgrave Macmillan, 2010), 1–22.
2. See Dana Lee Robert, Christian Mission: How Christianity Became a World Religion (Malden, MA: Wiley-Blackwell, 2009);
3. Hugh McLeod, ed., World Christianities (New York: Cambridge University Press, 2006).
4. Maurice Fishberg, Jews, Race, and Environment (New Brunswick, NJ: Translation Publishers, 2006, c.1911), 221;
5. Paul R. Spickard, Mixed Blood: Intermarriage and Ethnic Identity in Twentieth-Century America (Madison, WI: University of Wisconsin Press, 1989), 165.