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McCullough and Matson 2010.pdf

[Supplementary] McCullough, E. and P. Matson. 2010. Evolution of the knowledge system for agricultural development in the Yaqui Valley, Sonora, Mexico. DRAFT not for further distribution or citation. (This is a draft by Pam Matson and her colleague Ellen McCullough -- now at the Gates Foundation -- exploring the historical evolution of one particular knowledge system. It is intended to be part of the same PNAS Special Feature at the Clark and Tomich article.)

McCullough Matson 2010.pdf — PDF document, 745Kb