Cita APA

(1993). Under an open sky: Rethinking America s western past. New York: W. W. Norton.

Citación estilo Chicago

Under an Open Sky: Rethinking America S Western Past. New York: W. W. Norton, 1993.

Cita MLA

Under an Open Sky: Rethinking America S Western Past. New York: W. W. Norton, 1993.