Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.