Arntz, W. F. B. (1987). Joachim Berthold. Hirmer.
Lua i Stíl Chicago (17ú heag.)Arntz, Wilhelm F. Berthold. Joachim Berthold. München: Hirmer, 1987.
Lua MLA (8ú heag.)Arntz, Wilhelm F. Berthold. Joachim Berthold. Hirmer, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.