Cita APA (7th ed.)
Garver, J. B., Shupe, J. F., & Garrett, W. E. Ohio Valley. National Geographic Society.
Cita Chicago (17th ed.)
Garver, John B., John F. Shupe, i Wilbur E. Garrett. Ohio Valley. Washington, EUA: National Geographic Society.
Cita MLA (9th ed.)
Garver, John B., et al. Ohio Valley. National Geographic Society.
Atenció: Aquestes cites poden no estar 100% correctes.