Blum, V. C. (1969). Catholic education: Survival or demise? / Virgil C. Blum, S.J. Argus Communication Co..
Lua i Stíl Chicago (17ú heag.)Blum, Virgil C. Catholic Education: Survival or Demise? / Virgil C. Blum, S.J. Chicago: Argus Communication Co., 1969.
Lua MLA (8ú heag.)Blum, Virgil C. Catholic Education: Survival or Demise? / Virgil C. Blum, S.J. Argus Communication Co., 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.