Cita APA (7a ed.)

McIntyre, L., & Alarco, E. (1975). The incredible Incas and their timeless land. The National Geographic Society.

Cita Chicago Style (17a ed.)

McIntyre, Loren, y Eugenio Alarco. The Incredible Incas and Their Timeless Land. Washington, D.C: The National Geographic Society, 1975.

Cita MLA (9a ed.)

McIntyre, Loren, y Eugenio Alarco. The Incredible Incas and Their Timeless Land. The National Geographic Society, 1975.