Cardinal, R., & Webster, G. (2011). Kurt Schwitters. Hatje Cantz.
Lua i Stíl Chicago (17ú heag.)Cardinal, Roger, agus Gwendolen Webster. Kurt Schwitters. Ostfildern: Hatje Cantz, 2011.
Lua MLA (8ú heag.)Cardinal, Roger, agus Gwendolen Webster. Kurt Schwitters. Hatje Cantz, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.