Levko, J. J. (2000). Cassian's prayer for the 21st century. University of Scranton Press ; University of Toronto Press [distributor].
Lua i Stíl Chicago (17ú heag.)Levko, John J. Cassian's Prayer for the 21st Century. Scranton : Tonawanda, NY: University of Scranton Press ; University of Toronto Press [distributor], 2000.
Lua MLA (8ú heag.)Levko, John J. Cassian's Prayer for the 21st Century. University of Scranton Press ; University of Toronto Press [distributor], 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.