APA (7th ed.) Citation

Peter Damian, S., Resnick, I. M., & Blum, O. J. (2004). Letters, 121-150. Catholic University of America Press.

Chicago Style (17th ed.) Citation

Peter Damian, Saint, Irven M. Resnick, and Owen J. Blum. Letters, 121-150. Washington, D.C.: Catholic University of America Press, 2004.

MLA (8th ed.) Citation

Peter Damian, Saint, et al. Letters, 121-150. Catholic University of America Press, 2004.