Butler, E. C., & Knowless, D. (1967). Western Mysticism: The teaching of Augustine, Gregory and Bernard on contemplation and the contemplative life. Third edition with afterthoughts and a new foreword by David Knowless (3 ed. with afterthoughts and a new foreword by David Knowless.). Constable.
Chicago Style (17th ed.) CitationButler, Edward Cuthbert, and David Knowless. Western Mysticism: The Teaching of Augustine, Gregory and Bernard on Contemplation and the Contemplative Life. Third Edition with Afterthoughts and a New Foreword by David Knowless. 3 ed. with afterthoughts and a new foreword by David Knowless. London: Constable, 1967.
MLA (9th ed.) CitationButler, Edward Cuthbert, and David Knowless. Western Mysticism: The Teaching of Augustine, Gregory and Bernard on Contemplation and the Contemplative Life. Third Edition with Afterthoughts and a New Foreword by David Knowless. 3 ed. with afterthoughts and a new foreword by David Knowless. Constable, 1967.