Adriani, G., Konnertz, W., Thomas, K., & Beuys, J. (1979). Joseph Beuys, life and works: Götz Adriani; Winfried Konnertz; Karin Thomas. Barron's Educational Ser..
Lua i Stíl Chicago (17ú heag.)Adriani, Götz, Winfried Konnertz, Karin Thomas, agus Joseph Beuys. Joseph Beuys, Life and Works: Götz Adriani; Winfried Konnertz; Karin Thomas. Woodbury, N.Y. [u.a.]: Barron's Educational Ser., 1979.
Lua MLA (8ú heag.)Adriani, Götz, et al. Joseph Beuys, Life and Works: Götz Adriani; Winfried Konnertz; Karin Thomas. Barron's Educational Ser., 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.