Shields, T. E. (1917). Catholic education series. Catholic Education Press.
Lua i Stíl Chicago (17ú heag.)Shields, Thomas Edward. Catholic Education Series. Washington, D.C.: Catholic Education Press, 1917.
Lua MLA (8ú heag.)Shields, Thomas Edward. Catholic Education Series. Catholic Education Press, 1917.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.