Lua APA (7ú heag.)
McIntyre, L. (1975). The incredible Incas and their timeless land. National Geographic Society.
Lua i Stíl Chicago (17ú heag.)
McIntyre, Loren. The Incredible Incas and Their Timeless Land. Washington, D. C.: National Geographic Society, 1975.
Lua MLA (9ú heag.)
McIntyre, Loren. The Incredible Incas and Their Timeless Land. National Geographic Society, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.