Cita APA (7a ed.)

Parkman, F., & Guthrie, A. (1964). The Oregon trail. Signet Classic.

Cita Chicago Style (17a ed.)

Parkman, Francis, y A.B. Guthrie. The Oregon Trail. New York: Signet Classic, 1964.

Cita MLA (9a ed.)

Parkman, Francis, y A.B. Guthrie. The Oregon Trail. Signet Classic, 1964.