Dieter Roth BÜCHER [Dieter Roth BOOKS] 1974 Dieter Roth Dieter Roth BÜCHER [Dieter Roth BOOKS] offset on paper; Smythe sewn, softcover 2 copies, each: 8 1/8 x 8 1/8 in. (20.5 x 20.5 cm), 156 pp. Gift of Dr. Ira G. Wool (A) Gift of Dieter Roth (D)