Catholic Church, Abbaye Saint-Pierre de Solesmes, Gregorian Institute of America, & Spence, C. E. (1962). Chants of the church: Selected Gregorian chants. Gregorian Institute of America.
Lua i Stíl Chicago (17ú heag.)Catholic Church, Abbaye Saint-Pierre de Solesmes, Gregorian Institute of America, agus Charles E. Spence. Chants of the Church: Selected Gregorian Chants. Toledo: Gregorian Institute of America, 1962.
Lua MLA (8ú heag.)Catholic Church, et al. Chants of the Church: Selected Gregorian Chants. Gregorian Institute of America, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.