of Seville, Isidore. “Fortunatæ Insulæ” (“Fortunate Islands”) in Etymologiæ (Etymologies), XIV.6.8. AD 613:

“Book XIV: On the Earth and its Parts (Extracts) – Chapter 6: On Islands (8)” in Brehaut, Ernest. An Encyclopedist of the Dark Ages: Isidore of Seville, pp157-160 (p159). New York: Columbia University, 1912.
https://bestiary.ca/etexts/brehaut-encyclopedist-of-the-dark-ages.pdf

Eason, James. (Chapter 6, verse 8) on ‘Isidore’s Etymologies – Book 14 (Liber XIV: De Terra et Partibus)’ at Sir Thomas Browne, 22 August 2010.
https://penelope.uchicago.edu/Thayer/L/Roman/Texts/Isidore/14*.html#6