Pepper, I. (1997). From the Aesthetics of Indifference to Negative Aesthetics: John Cage and Germany 1958-1972. October.
Chicago-Zitierstil (17. Ausg.)Pepper, Ian. "From the Aesthetics of Indifference to Negative Aesthetics: John Cage and Germany 1958-1972." October 1997.
MLA-Zitierstil (8. Ausg.)Pepper, Ian. "From the Aesthetics of Indifference to Negative Aesthetics: John Cage and Germany 1958-1972." October, 1997.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.