Stewart, C. (1998). Cassian the monk. Oxford University Press.
Chicago-čujuhus (17. p.)Stewart, Columba. Cassian the Monk. New York: Oxford University Press, 1998.
MLA-čujuhus (9. p.)Stewart, Columba. Cassian the Monk. Oxford University Press, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.