Knowles, D. (1969). Christian monasticism. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Knowles, David. Christian Monasticism. New York: McGraw-Hill, 1969.
Lua MLA (9ú heag.)Knowles, David. Christian Monasticism. McGraw-Hill, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.