1. Alva W., Donnan C. B., Royal Tombs of Sipán (Fowler Museum of Culture History, University of California, Los Angeles, 1993)([Book Information].
2. Reinhard J., Alvarez S., Natl. Geogr. Mag188, 90 (1996).
3. Quebrada Jaguay: Early South American Maritime Adaptations
4. Burger R. L., Gordon R. B., Science282, 1108 (1998).
5. Renfrew C., Before Civilization: The Radiocarbon Revolution and Prehistoric Europe (Knopf, New York, 1979).