Lua APA (7ú heag.)

Bolliger, H. (1980). Kurt Schwitters.

Lua i Stíl Chicago (17ú heag.)

Bolliger, Hans. Kurt Schwitters. Köln, 1980.

Lua MLA (8ú heag.)

Bolliger, Hans. Kurt Schwitters. 1980.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.