Ong, W. J. (1942). Province of Rhetoric and Poetic. Saint Louis University Libraries Digitization Center.
Lua i Stíl Chicago (17ú heag.)Ong, Walter J. Province of Rhetoric and Poetic. Saint Louis University Libraries Digitization Center, 1942.
Lua MLA (8ú heag.)Ong, Walter J. Province of Rhetoric and Poetic. Saint Louis University Libraries Digitization Center, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.