Ong, W. J. (1974). Lincoln Lecture series: Avant-Propos. St. Louis University. Pius XII Memorial Library.
Lua i Stíl Chicago (17ú heag.)Ong, Walter J. Lincoln Lecture Series: Avant-Propos. St. Louis University. Pius XII Memorial Library, 1974.
Lua MLA (8ú heag.)Ong, Walter J. Lincoln Lecture Series: Avant-Propos. St. Louis University. Pius XII Memorial Library, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.