Cita APA (7th ed.)
Darley, J. M., & Grosvenor, M. B. Eastern South America. National Geographic Society.
Cita Chicago (17th ed.)
Darley, James M., i Melville Bell Grosvenor. Eastern South America. Washington, EUA: National Geographic Society.
Cita MLA (9th ed.)
Darley, James M., i Melville Bell Grosvenor. Eastern South America. National Geographic Society.
Atenció: Aquestes cites poden no estar 100% correctes.