Casey, M. (1994). The undivided heart: The western monastic approach to contemplation. St. Bede's Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCasey, Michael. The Undivided Heart: The Western Monastic Approach to Contemplation. Petersham, Mass.: St. Bede's Publications, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCasey, Michael. The Undivided Heart: The Western Monastic Approach to Contemplation. St. Bede's Publications, 1994.
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