Baudin, Louis. Daily Life in Peru Under the Last Incas. The Macmillan Company, New York. 1962.

Classen, Constance. Inca Cosmology and the Human Body. University of Utah Press, Salt Lake City. 1993.

Krupp, Dr. Edward C. Beyond the Blue Horizon: Myths and Legends of the Sun, Moon, Stars and Planets. Oxford University Press, New York. 1991.

Metraux, Alfred. The History of the Incas. Schocken Books, New York. 1970.

Moseley, Michael E. The Incas and Their Ancestors. Thames & Hudson, London. 1992.

Osborne, Harold. South American Mythology. Peter Bedrick Books, New York. 1968.

Ubbelohde-Doering, Heinrich. The Art of Ancient Peru. A. Zwemmer LTD, London. 1952.

Urton, Gary. At the Crossroads of the Earth and the Sky. University of Texas Press, Austin. 1981.

Urton, Gary. The History of a Myth, Pacariqtambo and the Origin of the Inkas. University of Texas Press, Austin. 1990.

From Josh Marcy's, Topher Wilkins' and Adam Tarnoff's ID1 paper.