1. O’Neill, C.: A Dictionary of Dyeing and Calico Printing. Baird, Philadelphia (1869)
2. Shore, J.: Colorants and Auxiliaries, 2nd edn. Society of Dyers and Colourists, Bradford (2002)
3. Society of Dyers and Colourists, American Association of Textile Chemists and Colorists: Colour Index. Society of Dyers and Colourists, Bradford. American Association of Textile Chemists and Colorists, Lowell (1956)
4. Johnson, A. (ed.): The Theory of Coloration of Textiles. Society of Dyers and Colourists, Bradford (1989)
5. Bancroft, E.: Experimental Researches Concerning the Philosophy of Permanent Colours and the Best Means of Producing them. Cadell and Davies, London (1813)