Lua APA (7ú heag.)
Sayers, D. L., & Introdduced by Sprague, R. K. (1973). A matter of eternity: Selection from the writings of Sayers... W.B. Eerdmans.
Lua i Stíl Chicago (17ú heag.)
Sayers, Dorothy L., agus Rosamond Kent Introdduced by Sprague. A Matter of Eternity: Selection from the Writings of Sayers... Grand Rapids, MI: W.B. Eerdmans, 1973.
Lua MLA (9ú heag.)
Sayers, Dorothy L., agus Rosamond Kent Introdduced by Sprague. A Matter of Eternity: Selection from the Writings of Sayers... W.B. Eerdmans, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.