APA (7th ed.) Citation

Parkman, F. (1956). The Oregon trail. New American Lib.

Chicago Style (17th ed.) Citation

Parkman, Francis. The Oregon Trail. New American Lib, 1956.

MLA (8th ed.) Citation

Parkman, Francis. The Oregon Trail. New American Lib, 1956.

Warning: These citations may not always be 100% accurate.