Lua APA (7ú heag.)

Ritter, J. (1972). D - F. Schwabe.

Lua i Stíl Chicago (17ú heag.)

Ritter, Joachim. D - F. Basel: Schwabe, 1972.

Lua MLA (8ú heag.)

Ritter, Joachim. D - F. Schwabe, 1972.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.