Cita APA

Parkman, F. 1., & Parkman, F. 1. (1982). The Oregon trail. New York, New York: Penguin Books.

Citación estilo Chicago

Parkman, Francis 1823-1893, y Francis 1823-1893 Parkman. The Oregon Trail. New York, New York: Penguin Books, 1982.

Cita MLA

Parkman, Francis 1823-1893, y Francis 1823-1893 Parkman. The Oregon Trail. New York, New York: Penguin Books, 1982.