Friel system: A language of color
Friel, Edward
Friel system: A language of color - Seattle: Edward Friel, 1961 - iv, 79p.
Science
535.64:547.97 / K1
Friel system: A language of color - Seattle: Edward Friel, 1961 - iv, 79p.
Science
535.64:547.97 / K1