Schmidt, H. A. P. (1960). Introductio in liturgiam occidentalem. Herder.
Lua i Stíl Chicago (17ú heag.)Schmidt, Herman A. P. Introductio in Liturgiam Occidentalem. Romae, [Italy]: Herder, 1960.
Lua MLA (8ú heag.)Schmidt, Herman A. P. Introductio in Liturgiam Occidentalem. Herder, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.