Isidori Hispalensis episcopi Etymologiarum sive Originum libri XX / recognovit brevique adnotatione critica instruxit W. M. Lindsay. - Isidorus Hispalensis, santo, circa 570-636. (OLS)http://pul/name/1319; Lindsay, Wallace Martin, 1858-1937. (OLS)http://pul/name/3232 (Clarendon, 1911)
v. 1. Libros I-X continens -- v. 2. Libros XI-XX continens.