Klee, S., & Hafner, H. (2018). Klaus-Martin Treder - Yes-What: Editing: Sonja Klee. Text: Hans-Jürgen Hafner.
Chicagoスタイル(17版)引用形式Klee, Sonja, , Hans-Jürgen Hafner. Klaus-Martin Treder - Yes-What: Editing: Sonja Klee. Text: Hans-Jürgen Hafner. Köln, 2018.
MLA(8版)引用形式Klee, Sonja, , Hans-Jürgen Hafner. Klaus-Martin Treder - Yes-What: Editing: Sonja Klee. Text: Hans-Jürgen Hafner. 2018.
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