Cita APA (7a ed.)

McNary-Zak, B., Ammonas, S., Smith, R. U., Morey, L., & Conic, N. (2010). Useful Servanthood: A Study of Spiritual Formation in the Writings of Abba Ammonas. Liturgical Press.

Cita Chicago Style (17a ed.)

McNary-Zak, Bernadette, Saint Ammonas, Richard Upsher Smith, Lawrence Morey, y Nada Conic. Useful Servanthood: A Study of Spiritual Formation in the Writings of Abba Ammonas. Collegeville, Minn.: Liturgical Press, 2010.

Cita MLA (8a ed.)

McNary-Zak, Bernadette, et al. Useful Servanthood: A Study of Spiritual Formation in the Writings of Abba Ammonas. Liturgical Press, 2010.