- Problems Of Science (1914) by Federigo Enriques, 2010-09-10
- Les concepts fondamentaux de la science: leur signification réelle et leur acquisition psychologique (French Edition) by Federigo Enriques, 1913-01-01
- Conferenze sulla geometria non-euclidea. Per cura de Olegario Fernandez. by Federigo Enriques, 1918
- L'Évolution de la Logique by Federigo Enriquès, 1926
- Elementi Di Geometria (Italian Edition) by Federigo Enriques, Federigo Amaldi, 2010-02-10
- Non-Euclidean Geometry: A Critical And Historical Study Of Its Development (1912) (Kessinger Publishing's Rare Reprints) by Roberto Bonola, 2008-06-02
- Probleme der Wissenschaft by Federigo Enriques, 1910
- Problems Of Science (1914) by Federigo Enriques, 2007-11-03
- Fragen Der Elementargeometrie by Federigo Enriques, 2009-10-10
- Non-Euclidean Geometry: A Critical And Historical Study Of Its Development (1912) by Roberto Bonola, 2010-09-10
- Lezioni di Geometria Proiettiva by Federigo Enriques, 2009-07-17
- Probleme der wissenschaft (German Edition) by Federigo Enriques, 1910-01-01
- Problems of Science by Federigo Enriques, 1914-01-01
- Non-Euclidean Geometry: A Critical And Historical Study Of Its Development (1912) by Roberto Bonola, 2010-09-10
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