Lua APA (7ú heag.)

Metzger, H. (1997). John Cage, or Liberated Music. October.

Lua i Stíl Chicago (17ú heag.)

Metzger, Heinz-Klaus. "John Cage, or Liberated Music." October 1997.

Lua MLA (8ú heag.)

Metzger, Heinz-Klaus. "John Cage, or Liberated Music." October, 1997.

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