Lua APA (7ú heag.)
Peter Damian, S., Blum, O. J., & Resnick, I. M. (2005). Peter Damian: Letters. Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)
Peter Damian, Saint, Owen J. Blum, agus Irven Michael Resnick. Peter Damian: Letters. Washington, D.C.: Catholic University of America Press, 2005.
Lua MLA (9ú heag.)
Peter Damian, Saint, et al. Peter Damian: Letters. Catholic University of America Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.