1. Baldo B (1616) Heronis Ctesibis Belopoetica id est, telifactiva, Augustae Vindelicorum, typu Davidu Franci.
2. Barbaro D (1584) De Architectura, by Marcus Vitruvius Pollio, traduced by Daniele Barbaro in ancient Italian as “I Dieci Libri dell’Architettura di M. Vitruvio”, Venezia.
3. Capocaccia AA (Editor) (1973) History of Technique – From Prehistory to the Year One Thousand”, UTET, Torino. (in Italian)
4. Ceccarelli M (2007) A Note on Roman Engineers and their Machines, CD Proc. of 2007 Bangalore IFToMM Workshop on History of MMS, Bangalore.
5. Chasles M (1875) Apercu historique sur l’origin et le développement des méthodes en géométrie …, Mémoires couronnés par l’Académie de Bruxelles, Vol. 11, 1837 (2nd Ed.), Paris.