Pauls, Elizabeth Prine. "Native American". Encyclopædia Britannica. Encyclopædia Britannica, Inc. Archived from the original on June 17, 2015. Retrieved November 30, 2019.
Pauls, Elizabeth Prine. "Native American". Encyclopædia Britannica. Encyclopædia Britannica, Inc. Archived from the original on June 17, 2015. Retrieved November 30, 2019.