APA (7th ed.) Citation

Barsanuphius, S., Chryssavgis, J., & John, t. P. (2006). Letters. Catholic University of America Press.

Chicago Style (17th ed.) Citation

Barsanuphius, Saint, John Chryssavgis, and the Prophet John. Letters. Washington, D.C.: Catholic University of America Press, 2006.

MLA (9th ed.) Citation

Barsanuphius, Saint, et al. Letters. Catholic University of America Press, 2006.