Parish, Helen Rand; Weidman, Harold E. (1976). «The Correct Birthdate of Bartolomé de las Casas». Hispanic American Historical Review (Durham, North Carolina: Duke University Press, in association with the American Historical Association) 56 (3): 385–403. doi:10.2307/2514372. ISSN0018-2168. OCLC1752092.
Parish, Helen Rand; Weidman, Harold E. (1976). «The Correct Birthdate of Bartolomé de las Casas». Hispanic American Historical Review (Durham, North Carolina: Duke University Press, in association with the American Historical Association) 56 (3): 385–403. doi:10.2307/2514372. ISSN0018-2168. OCLC1752092.