Cita APA (7th ed.)
Garver, J. B., & Garrett, W. E. Land of the Maya. National Geographic Society.
Cita Chicago (17th ed.)
Garver, John B., i Wilbur E. Garrett. Land of the Maya. Washington, EUA: National Geographic Society.
Cita MLA (9th ed.)
Garver, John B., i Wilbur E. Garrett. Land of the Maya. National Geographic Society.
Atenció: Aquestes cites poden no estar 100% correctes.