Freeman, J. Ernst Bloch and Hugo Ball: Toward an ontology of the avant-garde / Joel Freeman. Dada culture : critical texts on the Avant-garde.(2006).
Chicago-referens (17:e uppl.)Freeman, Joel. "Ernst Bloch and Hugo Ball: Toward an Ontology of the Avant-garde / Joel Freeman." Dada Culture : Critical Texts on the Avant-garde.(2006) .
MLA-referens (8:e uppl.)Freeman, Joel. "Ernst Bloch and Hugo Ball: Toward an Ontology of the Avant-garde / Joel Freeman." Dada Culture : Critical Texts on the Avant-garde.(2006), .
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