Elbert, J. A. (1952). Filial piety: The ideal devotion to Mary. Marianist Publications.
Lua i Stíl Chicago (17ú heag.)Elbert, John A. Filial Piety: The Ideal Devotion to Mary. Dayton, Ohio: Marianist Publications, 1952.
Lua MLA (8ú heag.)Elbert, John A. Filial Piety: The Ideal Devotion to Mary. Marianist Publications, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.