Catholic Church. (1890). The key of heaven, or, A manual of prayer: With an explanation of the ceremonies of the Mass, etc (New ed.). M.H. Gill.
Lua i Stíl Chicago (17ú heag.)Catholic Church. The Key of Heaven, or, A Manual of Prayer: With an Explanation of the Ceremonies of the Mass, Etc. New ed. Dublin: M.H. Gill, 1890.
Lua MLA (8ú heag.)Catholic Church. The Key of Heaven, or, A Manual of Prayer: With an Explanation of the Ceremonies of the Mass, Etc. New ed. M.H. Gill, 1890.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.