Heltshe, F. J. The Catholic scientist. Catholic Information Society.
Lua i Stíl Chicago (17ú heag.)Heltshe, Francis J. The Catholic Scientist. New York, N.Y.: Catholic Information Society.
Lua MLA (8ú heag.)Heltshe, Francis J. The Catholic Scientist. Catholic Information Society.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.