APA (7th ed.) Citation

Cirilo de Alejandría, S., Amidon, P. R., & O'Keefe, J. J. (2009). Festal letters 1-12. The Catholic University of America Press.

Chicago Style (17th ed.) Citation

Cirilo de Alejandría, Santo, Philip R. Amidon, and John J. O'Keefe. Festal Letters 1-12. Washington, D.C.: The Catholic University of America Press, 2009.

MLA (9th ed.) Citation

Cirilo de Alejandría, Santo, et al. Festal Letters 1-12. The Catholic University of America Press, 2009.