Heckenberger, Michael J.; J. Christian Russell; Carlos Fausto; Joshua R. Toney; Morgan J. Schmidt; Edithe Pereira; Bruna Franchetto; Afukaka Kuikuro (2008-09-29). "Pre-Columbian Urbanism, Anthropogenic Landscapes, and the Future of the Amazon". Science. 321 (5893). American Association for the Advancement of Science: 1214–1217. doi:10.1126/science.1159769. PMID18755979. S2CID41438038.
Heckenberger, Michael J.; J. Christian Russell; Carlos Fausto; Joshua R. Toney; Morgan J. Schmidt; Edithe Pereira; Bruna Franchetto; Afukaka Kuikuro (2008-09-29). "Pre-Columbian Urbanism, Anthropogenic Landscapes, and the Future of the Amazon". Science. 321 (5893). American Association for the Advancement of Science: 1214–1217. doi:10.1126/science.1159769. PMID18755979. S2CID41438038.
Heckenberger, Michael J.; J. Christian Russell; Carlos Fausto; Joshua R. Toney; Morgan J. Schmidt; Edithe Pereira; Bruna Franchetto; Afukaka Kuikuro (2008-09-29). "Pre-Columbian Urbanism, Anthropogenic Landscapes, and the Future of the Amazon". Science. 321 (5893). American Association for the Advancement of Science: 1214–1217. doi:10.1126/science.1159769. PMID18755979. S2CID41438038.
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O Parque – ISA. O Parque (in Portuguese), ISA: Instituto Socioambiental, retrieved 2016-05-05