Cita APA (7a ed.)

Peter Damian, S., & Blum, O. J. (2005). Letters: 151-180. Catholic University of America Press.

Cita Chicago Style (17a ed.)

Peter Damian, Saint, y Owen J. Blum. Letters: 151-180. Washington: Catholic University of America Press, 2005.

Cita MLA (8a ed.)

Peter Damian, Saint, y Owen J. Blum. Letters: 151-180. Catholic University of America Press, 2005.