German expressionist watercolors
Subtitle: from the collections of the  Wallraf-Richartz Museum, Cologne. [Catalogue of an exhibition]  circulated by the International Exhibitions Foundation, Washington  D.C, 1969-1970
By: introduction by Horst Keller.
Contributors: Keller, Horst.; Wallraf-Richartz-Museum.; International Exhibitions Foundation.
Publisher: International Exhibitions Foundation
Published: 1969
Place of publication: Washington D.C
Language: eng