La Gorce, J. O. (1955). National geographic on Indians of the Americas. The National Geographic society.
Cita Chicago Style (17a ed.)La Gorce, John Oliver. National Geographic on Indians of the Americas. Washington: The National Geographic society, 1955.
Cita MLA (9a ed.)La Gorce, John Oliver. National Geographic on Indians of the Americas. The National Geographic society, 1955.
Precaución: Estas citas no son 100% exactas.