Royal Academy of Arts <Great Britain>, Joachimides, C. M., & Becker, W. (1985). German art in the 20th Century: Painting and sculpture 1905-1985 / edited by Christos M. Joachimides. With contributions by Werner Becker. Co-ordinating editor Walter Grasskamp. Prestel [u.a.].
Lua i Stíl Chicago (17ú heag.)Royal Academy of Arts <Great Britain>, Christos M. Joachimides, agus Werner Becker. German Art in the 20th Century: Painting and Sculpture 1905-1985 / Edited by Christos M. Joachimides. With Contributions by Werner Becker. Co-ordinating Editor Walter Grasskamp. München: Prestel [u.a.], 1985.
Lua MLA (8ú heag.)Royal Academy of Arts <Great Britain>, et al. German Art in the 20th Century: Painting and Sculpture 1905-1985 / Edited by Christos M. Joachimides. With Contributions by Werner Becker. Co-ordinating Editor Walter Grasskamp. Prestel [u.a.], 1985.