Cita APA (7th ed.)
National Geographic Society & National Geographic Society. (1975). THE INCREDIBLE INCAS AND THEIR TIMELESS LAND.
Cita Chicago (17th ed.)
National Geographic Society i National Geographic Society. THE INCREDIBLE INCAS AND THEIR TIMELESS LAND. 1975.
Cita MLA (9th ed.)
National Geographic Society i National Geographic Society. THE INCREDIBLE INCAS AND THEIR TIMELESS LAND. 1975.
Atenció: Aquestes cites poden no estar 100% correctes.