Creamer, W., Ruiz, A., & Haas, J. (2007). Archaeological Investigation of Late Archaic Sites (3000- 18OO B.C.) in the Pativilca Valley, Peru. Field Museum of Natural History.

Creamer, Winifred, Alvaro Ruiz, and Jonathan Haas. Archaeological Investigation of Late Archaic Sites (3000- 18OO B.C.) in the Pativilca Valley, Peru. Chicago, Ill.: Field Museum of Natural History, 2007.

Creamer, Winifred, et al. Archaeological Investigation of Late Archaic Sites (3000- 18OO B.C.) in the Pativilca Valley, Peru. Field Museum of Natural History, 2007.