Walsh, Harry H. “Turkic-Speaking Peoples.” In Muslim Peoples: A World Ethnographic Survey, edited by Richard V. Weekes, 422-427. Westport, CT: Greenwood Press, 1978.

This chapter is mostly linguistic and shows the diversity of Turkic people in Central Asia.  Here is one of the few quotes about Islam from page 427: "The Kirgiz, alone among the eastern Turks [Kirgiz-Kipchak and Khakas-Yakut], practice Islam, albeit with a shamanistic substratum."  Descriptors: 1970s, bibliographic, chapter, identity, linguistics, Soviet, W; syncretism