Pronunciación del EspañolDonald N. Tuten, Fernando Tejedo-Herrero, Ray Harris-Northall, Robyn H. Clarke, Rajiv Rao · First published 2021Open the Tome
Weakening processes in the history of Spanish consonantsRay Harris-Northall · First published 1990 · Latest edition 2016Open the Tome
Text and concordance of the Gran conquista de UltramarWilliam of Tyre, Archbishop of Tyre, Ray Harris-Northall · First published 1994Open the Tome
Linguistic studies in medieval SpanishRay Harris-Northall, Thomas D. Cravens · First published 1991Open the Tome