Cyril, S., & McEnerney, J. I. (2007). Letters 1-50. Catholic University of America Press.

Cyril, Saint, and John I. McEnerney. Letters 1-50. Washington, D.C.: Catholic University of America Press, 2007.

Cyril, Saint, and John I. McEnerney. Letters 1-50. Catholic University of America Press, 2007.