Butler, C. (1966). Western mysticism: The teaching of Augustine, Gregory and Bernard on contemplation an the contemplative life (2nd ed. with afterthoughts.). Harper & Row.
Cita Chicago Style (17a ed.)Butler, Cuthbert. Western Mysticism: The Teaching of Augustine, Gregory and Bernard on Contemplation an the Contemplative Life. 2nd ed. with afterthoughts. New York: Harper & Row, 1966.
Cita MLA (9a ed.)Butler, Cuthbert. Western Mysticism: The Teaching of Augustine, Gregory and Bernard on Contemplation an the Contemplative Life. 2nd ed. with afterthoughts. Harper & Row, 1966.
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