APA-ийн эшлэл(7 дахь хэвлэлт)

Headman, L., & O'Neill, S. (2020). Walks on the ground: A tribal history of the Ponca nation. University of Nebraska Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Headman, Louis, ба Sean O'Neill. Walks on the Ground: A Tribal History of the Ponca Nation. Lincoln: University of Nebraska Press, 2020.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Headman, Louis, ба Sean O'Neill. Walks on the Ground: A Tribal History of the Ponca Nation. University of Nebraska Press, 2020.