Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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