Michel, V. G., & Hellriegel, M. B. (1930). The liturgical movement. Liturgical Press.
Lua i Stíl Chicago (17ú heag.)Michel, Virgil George, agus Martin B. Hellriegel. The Liturgical Movement. Collegeville: Liturgical Press, 1930.
Lua MLA (8ú heag.)Michel, Virgil George, agus Martin B. Hellriegel. The Liturgical Movement. Liturgical Press, 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.