Las publicaciones son documentos de investigación que los sitios de referencia y las muestras.

Publicación Bibliografía
Zarrillo 2012

Zarrillo, Sonia
    2012    Human Adaptation, Food Production, and Cultural Interaction During the Formative Period in Highland Ecuador. Unpublished Ph.D. dissertation, Department of Archaeology, University of Calgary, Calgary.

Zarrillo and Kooyman 2006

Zarrillo, S. and B. Kooyman
    2006    Evidence for Berry and Maize Processing on the Canadian Plains from Starch Grain Analysis. American Antiquity 71(3):473-499.

Zarrillo et al. 2008

Zarrillo, S., D. M. Pearsall, J. S. Raymond, M. A. Tisdale and D. J. Quon
    2008    Directly dated starch residues document early formative maize (Zea mays L.) in tropical Ecuador. Proceedings of the National Academy of Sciences, USA 105(13):5006–5011.