Moseley, Michael E.; Gordon R. Willey (1973). «Aspero, Peru: A Reexamination of the Site and Its Implications». American Antiquity38 (4): 452-468. doi:10.2307/279151. Consultado el 1 de febrero de 2007.La referencia utiliza el parámetro obsoleto |coautores= (ayuda) "We see the site as a 'peaking' of an essentially non-agricultural economy. Subsistence was still, basically, from the sea. But such subsistence supported a sedentary style of life, with communities of appreciable size."
Roberts, J.M. (2004). The New Penguin History of the World (Fourth edición). London: Penguin Books. pp. 153. «[The Americas] are millennia behind the development of civilization elsewhere, whatever the cause of that may be.»The implied laggardness appears disproven by Norte Chico; in his work, Mann is sharply critical of the inattention provided the Pre-Columbian Americas.
Moseley, Michael E.; Gordon R. Willey (1973). «Aspero, Peru: A Reexamination of the Site and Its Implications». American Antiquity38 (4): 452-468. doi:10.2307/279151. Consultado el 1 de febrero de 2007.La referencia utiliza el parámetro obsoleto |coautores= (ayuda) "We see the site as a 'peaking' of an essentially non-agricultural economy. Subsistence was still, basically, from the sea. But such subsistence supported a sedentary style of life, with communities of appreciable size."
Shady Solis, Ruth; Jonathan Haas, Winifred Creamer (27 de abril de 2001). «Dating Caral, a Preceramic Site in the Supe Valley on the Central Coast of Peru». Science292 (5517): 723-726. doi:10.1126/science.1059519.La referencia utiliza el parámetro obsoleto |coautores= (ayuda); |fechaacceso= requiere |url= (ayuda)
Haas, Jonathan; Winifred Creamer, Álvaro Ruiz (2005). «Power and the Emergence of Complex Polities in the Peruvian Preceramic». Archaeological Papers of the American Anthropological Association14: 37-52. doi:10.1525/ap3a.2005.14.037.La referencia utiliza el parámetro obsoleto |coautores= (ayuda); |fechaacceso= requiere |url= (ayuda)
Pringle, Heather (27 de abril de 2001). «The First Urban Center in the Americas». Science292 (5517): 621. PMID11330310. doi:10.1126/science.292.5517.621.|fechaacceso= requiere |url= (ayuda)The claim in this Science 'News of the Week' column that Caral is the oldest urban center in the Americas is highly uncertain.
Haas, Jonathan; Winifred Creamer, Álvaro Ruiz (23 de diciembre de 2004). «Dating the Late Archaic occupation of the Norte Chico region in Peru». Nature432 (7020): 1020-1023. PMID15616561. doi:10.1038/nature03146.La referencia utiliza el parámetro obsoleto |coautores= (ayuda)
Pringle, Heather (27 de abril de 2001). «The First Urban Center in the Americas». Science292 (5517): 621. PMID11330310. doi:10.1126/science.292.5517.621.|fechaacceso= requiere |url= (ayuda)The claim in this Science 'News of the Week' column that Caral is the oldest urban center in the Americas is highly uncertain.
Haas, Jonathan; Winifred Creamer, Álvaro Ruiz (23 de diciembre de 2004). «Dating the Late Archaic occupation of the Norte Chico region in Peru». Nature432 (7020): 1020-1023. PMID15616561. doi:10.1038/nature03146.La referencia utiliza el parámetro obsoleto |coautores= (ayuda)