Hughes, K. (1990). How firm a foundation: Voices of the early liturgical movement. Liturgy Training Publications.
Lua i Stíl Chicago (17ú heag.)Hughes, Kathleen. How Firm a Foundation: Voices of the Early Liturgical Movement. Chicago, Ill.: Liturgy Training Publications, 1990.
Lua MLA (8ú heag.)Hughes, Kathleen. How Firm a Foundation: Voices of the Early Liturgical Movement. Liturgy Training Publications, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.