APA (7th ed.) Citation

Driggs, H. R., Meeker, E., & Wilson, F. N. (2009). Ox-Team Days on the Oregon Trail. Project Gutenberg.

Chicago Style (17th ed.) Citation

Driggs, Howard R., Ezra Meeker, and F. N. Wilson. Ox-Team Days on the Oregon Trail. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Driggs, Howard R., et al. Ox-Team Days on the Oregon Trail. Project Gutenberg, 2009.

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