Schlüter, B. (1997). Seen & unseen: Rudolf Kicken Gallery, Cologne, Germany 1976-1996 ; [. on occasion of the 20th-year-anniversary of the Rudolf Kicken Gallery and accompanies exhibitions] (Private ed.). Rudolf Kicken Gallery.
Chicago-referens (17:e uppl.)Schlüter, Brigitte. Seen & Unseen: Rudolf Kicken Gallery, Cologne, Germany 1976-1996 ; [. on Occasion of the 20th-year-anniversary of the Rudolf Kicken Gallery and Accompanies Exhibitions]. Private ed. Köln: Rudolf Kicken Gallery, 1997.
MLA-referens (8:e uppl.)Schlüter, Brigitte. Seen & Unseen: Rudolf Kicken Gallery, Cologne, Germany 1976-1996 ; [. on Occasion of the 20th-year-anniversary of the Rudolf Kicken Gallery and Accompanies Exhibitions]. Private ed. Rudolf Kicken Gallery, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.