Ward, J. (2001). Weimar surfaces: Urban visual culture in 1920s Germany. University of California Press.
Lua i Stíl Chicago (17ú heag.)Ward, Janet. Weimar Surfaces: Urban Visual Culture in 1920s Germany. Berkeley: University of California Press, 2001.
Lua MLA (9ú heag.)Ward, Janet. Weimar Surfaces: Urban Visual Culture in 1920s Germany. University of California Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.