Begheyn, P. (1981). A bibliography on St. Ignatius' Spiritual exercises: A working-tool for American students. American Assistancy Seminar.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBegheyn, Paul. A Bibliography on St. Ignatius' Spiritual Exercises: A Working-tool for American Students. St. Louis: American Assistancy Seminar, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBegheyn, Paul. A Bibliography on St. Ignatius' Spiritual Exercises: A Working-tool for American Students. American Assistancy Seminar, 1981.
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