Elbert, J. A. (1940). Devotion to Mary in the 20th century. The Bruce publishing company.
Lua i Stíl Chicago (17ú heag.)Elbert, John A. Devotion to Mary in the 20th Century. Milwaukee: The Bruce publishing company, 1940.
Lua MLA (8ú heag.)Elbert, John A. Devotion to Mary in the 20th Century. The Bruce publishing company, 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.