APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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