Gwinner, S. v. (2010). Gudrun Arp: Fremde Federn. Kunsthandwerk & Design.
Cita Chicago (17th ed.)Gwinner, Schnuppe von. "Gudrun Arp: Fremde Federn." Kunsthandwerk & Design 2010.
Cita MLA (8th ed.)Gwinner, Schnuppe von. "Gudrun Arp: Fremde Federn." Kunsthandwerk & Design, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.