Orchard, K. (2003). Kurt Schwitters. Hatje Cantz.
Lua i Stíl Chicago (17ú heag.)Orchard, Karin. Kurt Schwitters. Ostfildern-Ruit: Hatje Cantz, 2003.
Lua MLA (8ú heag.)Orchard, Karin. Kurt Schwitters. Hatje Cantz, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.