[2] VITRUVIUS: The Ten Books on Architecture. Harvard University Press, London: Humphrey Milford, Oxford University Press, 1914, http://www.perseus.tufts.edu/hopper/text?doc=Vitr.%203&lang=original.
[3] VITRUVIUS, P.: M. Vitruvius per Iocundum solito castigatior factus ... Iannes de Tridino. McGill University Library, Toronto, 1511, https://archive.org/details/McGillLibrary-rbsc_blc_m-vitruvius-per-Iocundum-solito_folioNA2517V71511b-2998.
[4] VITRUVIUS, P. - CESARIANO, C. - GALLO, A. - PIROVANO, A. - GIOVIO, B. – MAURO, B.: Di Lucio Vitruuio Pollione De architectura libri dece... di epsa opera. Getty Research Institute, No. 9929975880001551, 1521, https://archive.org/details/gri_33125008262210.
[6] FROMMEL, S.: Vignola in Francie: un episodio incerto del suo itinerario artistico. Studi su Jacopo Barozzi da Vignola, 2011, eds A. M. Affani and P. Porthoghesi, Rome, Gangemi, 215 - 36.
[10] WARE, W. R.: The American Vignola, 1904: https://archive.org/details/americanvignola00vigngoog; edition of 1902: https://archive.org/stream/cu31924091026504#page/n19/mode/2up.