Style de citation APA (7e éd.)

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.

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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