Hoffmann, G., & Hornung, A. Preface: Gerhard Hoffmann. Alfred Hornung. Ethics and aesthetics : the moral turn of postmodernism.(1996).
Čikaški stil citiranja (17. izdanje)Hoffmann, Gerhard, i Alfred Hornung. "Preface: Gerhard Hoffmann. Alfred Hornung." Ethics and Aesthetics : The Moral Turn of Postmodernism.(1996) .
MLA način citiranja (8. izdanje)Hoffmann, Gerhard, i Alfred Hornung. "Preface: Gerhard Hoffmann. Alfred Hornung." Ethics and Aesthetics : The Moral Turn of Postmodernism.(1996), .
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