Cita APA (7a ed.)

Parkman, F., & Rosenthal, B. (1996). The Oregon trail. University Press.

Cita Chicago Style (17a ed.)

Parkman, Francis, y Bernard Rosenthal. The Oregon Trail. Oxford [etc.]: University Press, 1996.

Cita MLA (9a ed.)

Parkman, Francis, y Bernard Rosenthal. The Oregon Trail. University Press, 1996.