Sánchez-Concha Barrios, Rafael. “Vigil, Ralph H. Alonso De Zorita: Royal Judge and Christian Hunanist. 1512- 1585. Norman and London, University of Oklahoma, 1987.363 P”. Histórica, vol. 16, no. 2, Feb. 1992, pp. 323-5, doi:10.18800/historica.199202.012.