Ong, W. J. (1970). The presence of the word: Some prolegomena for cultural and religious history. Simon and Schuster.
Lua i Stíl Chicago (17ú heag.)Ong, Walter J. The Presence of the Word: Some Prolegomena for Cultural and Religious History. New York: Simon and Schuster, 1970.
Lua MLA (8ú heag.)Ong, Walter J. The Presence of the Word: Some Prolegomena for Cultural and Religious History. Simon and Schuster, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.