Latin text
DE MATHEMATICA
Isidore of Seville, ETYMOLOGIARVM SIVE ORIGINVM LIBRI XX. Text: The Latin Library (thelatinlibrary.com), used with permission. Changes: HTML markup removed and the text divided into reading sections by Interlinea.
Texts from The Greek Library and the Perseus Digital Library, under CC BY-SA 4.0 and CC BY 4.0. Divided into reading sections by Interlinea.