History of American Indians in California
http://www.cr.nps.gov/history/online_books/5views/5views1e.htm

WEB RESOURCE In this article from the Five Views: An Ethnic Historic Site Survey for California, limits on Native American religious practice in the early 20th c. are addressed.

Native American Spirituality and Sacred Rites
http://impurplehawk.com/naspirit.html

WEB RESOURCE Many followers of Aboriginal religions, such as the many types of Native American Spirituality, do not regard their spiritual beliefs and practices as a "religion" in the way in which many Christians do. Their beliefs and practices form a integral and seamless part of their very being. Learn more at this website.