Ong, W. J. (1968). Presence of the Word: Fragment 2. St. Louis University. Pius XII Memorial Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOng, Walter J. Presence of the Word: Fragment 2. St. Louis University. Pius XII Memorial Library, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOng, Walter J. Presence of the Word: Fragment 2. St. Louis University. Pius XII Memorial Library, 1968.
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