The elements of colour a treatise on the colour theory of Johannes Itten, based on his book 'The art of color' /
Itten, Johannes,1888-1967.
Birren, Faber,1900-1988.
Hagen, Ernst van.
New York London Van Nostrand Reinhold
1970
'A simplification and condensation of "The art of color" ' - foreword
'The art of color' originally published as 'Kunst der Farbe'. Ravensburg: Maier, 1970
Color.