Cita APA (7th ed.)
Keating, B., Stanfield, J. L., & Grosvenor, M. B. The Mighty Mississippi. National Geographic Society, Special Publications Division.
Cita Chicago (17th ed.)
Keating, Bern, James L. Stanfield, i Melville Bell Grosvenor. The Mighty Mississippi. Washington, EUA: National Geographic Society, Special Publications Division.
Cita MLA (9th ed.)
Keating, Bern, et al. The Mighty Mississippi. National Geographic Society, Special Publications Division.
Atenció: Aquestes cites poden no estar 100% correctes.