Bibliografía
- David E. Joyce, Los elementos de Euclides, http://www.euclides.org/menu/elements_esp/indiceeuclides.htm
- David E. Joyce, The Elements of Euclides, http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
- Oliver Byrne, The first six books of The Elements of Euclides,1847, http://www.math.ubc.ca/~cass/Euclid/byrne.html
- GeoGebra, http://www.geogebra.org/cms/
- María Luisa Puertas, Elementos de Euclides, Gredos, 1991-1996.
- Juan Navarro Loidi, Los elementos de Euclides, 2002.