Zapf, H. Ecological transformations of critical theory: Hubert Zapf. Theory Matters : The Place of Theory in Literary and Cultural Studies Today.(2016).
Lua i Stíl Chicago (17ú heag.)Zapf, Hubert. "Ecological Transformations of Critical Theory: Hubert Zapf." Theory Matters : The Place of Theory in Literary and Cultural Studies Today.(2016) .
Lua MLA (8ú heag.)Zapf, Hubert. "Ecological Transformations of Critical Theory: Hubert Zapf." Theory Matters : The Place of Theory in Literary and Cultural Studies Today.(2016), .
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