Levering, M., & O'Regan, C. (2019). The achievement of Hans Urs von Balthasar: An introduction to his trilogy. The Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)Levering, Matthew, agus Cyril O'Regan. The Achievement of Hans Urs Von Balthasar: An Introduction to His Trilogy. Washington, D.C.: The Catholic University of America Press, 2019.
Lua MLA (9ú heag.)Levering, Matthew, agus Cyril O'Regan. The Achievement of Hans Urs Von Balthasar: An Introduction to His Trilogy. The Catholic University of America Press, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.