Hoffmann, G., & Hornung, A. Preface: Gerhard Hoffmann. Alfred Hornung. Ethics and aesthetics : the moral turn of postmodernism.(1996).
Chicago Style (17. basım) AtıfHoffmann, Gerhard, ve Alfred Hornung. "Preface: Gerhard Hoffmann. Alfred Hornung." Ethics and Aesthetics : The Moral Turn of Postmodernism.(1996) .
MLA (8th ed.) AtıfHoffmann, Gerhard, ve Alfred Hornung. "Preface: Gerhard Hoffmann. Alfred Hornung." Ethics and Aesthetics : The Moral Turn of Postmodernism.(1996), .
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