Keller, W. (1982). Ludi musici. Fidula.
Lua i Stíl Chicago (17ú heag.)Keller, Wilhelm. Ludi Musici. Boppard: Fidula, 1982.
Lua MLA (8ú heag.)Keller, Wilhelm. Ludi Musici. Fidula, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.