Lua APA (7ú heag.)

Thelen, K. (2007). Paul Schwer: In progress. Kettler Druck.

Lua i Stíl Chicago (17ú heag.)

Thelen, Klaus. Paul Schwer: In Progress. Bönen: Kettler Druck, 2007.

Lua MLA (8ú heag.)

Thelen, Klaus. Paul Schwer: In Progress. Kettler Druck, 2007.

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