Karshner, R. (1971). The music machine: By Roger Karshner. Nash.
Lua i Stíl Chicago (17ú heag.)Karshner, Roger. The Music Machine: By Roger Karshner. Los Angeles, Calif.: Nash, 1971.
Lua MLA (8ú heag.)Karshner, Roger. The Music Machine: By Roger Karshner. Nash, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.