Investigaciones sobre "el Quijote" Apócrifo, etc. [A study in which the author gives reasons for attributing to Francisco Gomez de Quevedo Villegas the 'Segundo Tomo del Ingenioso Hidalgo Don Quixote de la Mancha' published under the pseudonym Alonso Fernandez de Avellaneda.]
Espín Rael, Joaquín.
Madrid, 
1942.