Geospiza difficilis (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Geospiza difficilis" in Spanish language version.

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ardeola.org

biodiversitylibrary.org

  • Sharpe, R.B. (1888). «Catalogue of the Passeriformes or Perching Birds, in the Collection of the British Museum. Fringilliformes: Part III. Containing the Family Fringillidae». Catalogue of the birds in the British Museum (en inglés) (Londres: Taylor & Francis). 12: i–xv; 1–871; pl. 1–16. Geospiza difficilis, descripción original p.12. Disponible en Biodiversitas Heritage Library. doi:10.5962/bhl.title.8233. 

bsc-eoc.org

avibase.bsc-eoc.org

doi.org

dx.doi.org

doi.org

issn.org

portal.issn.org

iucnredlist.org

apiv3.iucnredlist.org

lsu.edu

museum.lsu.edu

psu.edu

citeseerx.ist.psu.edu

researchgate.net