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.
Čikaški stil citiranja (17. izdanje)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 način citiranja (8. izdanje)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.
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