Secondary Sources
Kerstetter, Todd M. “Ghost Dance.” Encyclopedia of the Great Plains, plainshumanities.unl.edu/encyclopedia/doc/egp.rel.023.
Barrett, Carol A. “Sitting Bull.” Encyclopedia of the Great Plains, http://plainshumanities.unl.edu/encyclopedia/doc/egp.na.109.
Carter, John E. “Wounded Knee Massacre.” Encyclopedia of the Great Plains, http://plainshumanities.unl.edu/encyclopedia/doc/egp.war.056.
Grant, R.G.. “Wounded Knee Massacre.” Britannica, https://www.britannica.com/topic/Wounded-Knee-Massacre.