Langley, R. (1991). Signs of the time... Apparitions, visions, locutions conderning the last times. Marian Center.
Lua i Stíl Chicago (17ú heag.)Langley, Richard. Signs of the Time... Apparitions, Visions, Locutions Conderning the Last Times. Waterloo, IA: Marian Center, 1991.
Lua MLA (8ú heag.)Langley, Richard. Signs of the Time... Apparitions, Visions, Locutions Conderning the Last Times. Marian Center, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.