Karl Arnold: Werke aus den Jahren, 1908 - 1942. Katalog 44, Spring 1990.
Campione d'Italia, Switzerland: Galleria Henze, 1990. 4to., printed wraps. 112 pp. Ger. Ill. 92 color & black & white plates. Katalog-Bearbeitung: Thomas Matuszak. Price list laid in. VG. More