Ong, W. J. (1968). Presence of the Word: Fragment 1. St. Louis University. Pius XII Memorial Library.
Lua i Stíl Chicago (17ú heag.)Ong, Walter J. Presence of the Word: Fragment 1. St. Louis University. Pius XII Memorial Library, 1968.
Lua MLA (8ú heag.)Ong, Walter J. Presence of the Word: Fragment 1. St. Louis University. Pius XII Memorial Library, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.