Book catalogue

Author: Ruhrberg, Karl

Art of the 20th century. Vol. 1, Painting / by Karl Ruhrberg [et al.] ; ed. by Ingo F. Walther ; [transl.: John William Gabriel et al.].

Ruhrberg, Karl

Publishers’ Address: Köln , Taschen, 2012
Dietmar Schneider : Kunstlerportraits 1978-1983 / tekst Karl Ruhrberg

Ruhrberg, Karl

Publishers’ Address: Köln , Galerie Glockengasse 4711, [1983]
Twentieth Century Art : Painting and Sculpture in the Ludwig Museum / Karl Ruhrberg

Ruhrberg, Karl

Publishers’ Address: Koeln, Museum Ludwig, 1986