Brennan, R. E. (1948). The apostolate of the liturgy: A commentary on Mediator Dei. Dept. of Education, National Catholic Welfare Conference.
Lua i Stíl Chicago (17ú heag.)Brennan, Robert Edward. The Apostolate of the Liturgy: A Commentary on Mediator Dei. Washington: Dept. of Education, National Catholic Welfare Conference, 1948.
Lua MLA (8ú heag.)Brennan, Robert Edward. The Apostolate of the Liturgy: A Commentary on Mediator Dei. Dept. of Education, National Catholic Welfare Conference, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.