Cline, Howard F. «Missing and Variant Prologues and Dedications in Sahagun’s Historia General: Texts and English Translations». Estudios De Cultura Náhuatl, vol. 9, enero de 1971, pp. 237-51, https://sandbox.astra.red/IIH/nahualt2026/index.php/ecn/article/view/78532.