Tre sorelle (agricoltura) (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Tre sorelle (agricoltura)" in Italian language version.

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archive.org

Toby Hemenway, Gaia's Garden: A Guide to Home-Scale Permaculture, White River Junction, VT, Chelsea Green Publishing, 2000, p. 149, ISBN 1-890132-52-7.

bookdepository.com

Gilbert Wilson, Agriculture of the Hidatsa Indians: An Indian Interpretation, Gloucestershire, Dodo Press, 1917, p. 25, ISBN 978-1-4099-4233-7.

doi.org

dx.doi.org

G. H. S. Bushnell, The Beginning and Growth of Agriculture in Mexico, in Philosophical Transactions of the Royal Society of London, vol. 275, n. 936, London, Royal Society of London, 1976, pp. 117-120, DOI:10.1098/rstb.1976.0074.
Bruce D. Smith, The Initial Domestication of Cucurbita pepo in the Americas 10,000 Years Ago, in Science, Washington, DC, American Association for the Advancement of Science, maggio 1997, DOI:10.1126/science.276.5314.932.

motherearthnews.com

John Vivian, The Three Sisters, su motherearthnews.com, Mother Earth News, febbraio–marzo 2001. URL consultato il 18 settembre 2013.

oadoi.org

G. H. S. Bushnell, The Beginning and Growth of Agriculture in Mexico, in Philosophical Transactions of the Royal Society of London, vol. 275, n. 936, London, Royal Society of London, 1976, pp. 117-120, DOI:10.1098/rstb.1976.0074.

sciencemag.org

Bruce D. Smith, The Initial Domestication of Cucurbita pepo in the Americas 10,000 Years Ago, in Science, Washington, DC, American Association for the Advancement of Science, maggio 1997, DOI:10.1126/science.276.5314.932.

unl.edu

digitalcommons.unl.edu

Amanda J. Landon, The "How" of the Three Sisters: The Origins of Agriculture in Mesoamerica and the Human Niche, in Nebraska Anthropologist, Lincoln, NE, University of Nebraska-Lincoln, 2008, pp. 110-124.

web.archive.org

Cucurbitaceae--Fruits for Peons, Pilgrims, and Pharaohs, su botgard.ucla.edu, University of California at Los Angeles. URL consultato il 2 settembre 2013 (archiviato dall'url originale il 16 ottobre 2013).