APA (7th ed.) Citation

Isaak, Hansbury, M., & Isaak, N. (1989). On ascetical life. St. Vladimir's Seminary Press.

Chicago Style (17th ed.) Citation

Isaak, Mary Hansbury, and Ninive Isaak. On Ascetical Life. Crestwood, NY: St. Vladimir's Seminary Press, 1989.

MLA (8th ed.) Citation

Isaak, et al. On Ascetical Life. St. Vladimir's Seminary Press, 1989.

Warning: These citations may not always be 100% accurate.