Huder, W., & Ritscher, H. (1979). Erwin Piscator: 1893-1966 ; an exhibition by the Archiv der Akademie der Künste, Berlin in cooperation with the Goethe Institute.
Lua i Stíl Chicago (17ú heag.)Huder, Walter, agus Hannelore Ritscher. Erwin Piscator: 1893-1966 ; an Exhibition by the Archiv Der Akademie Der Künste, Berlin in Cooperation with the Goethe Institute. London, 1979.
Lua MLA (8ú heag.)Huder, Walter, agus Hannelore Ritscher. Erwin Piscator: 1893-1966 ; an Exhibition by the Archiv Der Akademie Der Künste, Berlin in Cooperation with the Goethe Institute. 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.