Briers, D. (2010). Sounds of Silence: On John Cage and Morton Feldman. Art Monthly.
Lua i Stíl Chicago (17ú heag.)Briers, David. "Sounds of Silence: On John Cage and Morton Feldman." Art Monthly 2010.
Lua MLA (8ú heag.)Briers, David. "Sounds of Silence: On John Cage and Morton Feldman." Art Monthly, 2010.
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