Perez, Juan. **D 2708.52 Breve tratedo de doctrina itil para todo cristiano.
Affo de 1560. Ahora fielmente reimpreso. Madrid: A. Duran. 1871. viii, 240, (9) pp. Sm. 8°, Edited by William I. Knapp. A letter from the editor, dated Brooklyn, Nov. 7th, 1878, giving an account of six Spanish works he has edited, is inserted.
-Knapp, William ze Ireland, ed.