W. Spies, editor, Max Ernst Oeuvre-Katalog: Vol.I, W. Spies, S. & G. Metken, Max Ernst Werke 1906-1925; and Vol.II, H.R. Leppien, Max Ernst Das graphische Werk, Menil Foundation, Houston and M. Du Mont Schauberg, Cologne, 1975, vol. II with original lithogrpah in colours, reproductions, from the edition of 1,500, original paper-covered boards, paper wrappers, slipcases, 340 x 260 mm.; Brusberg Dokumente 3 Max Ernst: Jenseits der Malerei - Das graphische Oeuvre, Hannover, 1972; and five others on Ernst (8)