Mittermülller, R., & Dympna, S. (1928). Life and work of the Right Reverend George Michael Wittmann, Bishop of Ratisbon. Bruce.
Lua i Stíl Chicago (17ú heag.)Mittermülller, Rupert, agus Sister Dympna. Life and Work of the Right Reverend George Michael Wittmann, Bishop of Ratisbon. Milwaukee, Wis.: Bruce, 1928.
Lua MLA (8ú heag.)Mittermülller, Rupert, agus Sister Dympna. Life and Work of the Right Reverend George Michael Wittmann, Bishop of Ratisbon. Bruce, 1928.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.