Sidaway, Ian <br/><br/>
Colour mixing bible :  all you'll ever need to know about mixing pigments in oil, acrylic, watercolour, gouache, soft pastel, coloured pencil and ink 

 -  Quarto Publishing,  2004. 
<br/><br/><label>ISBN: </label>0715318233 
<br/><br/><label>Dewey Class. No.: </label>701.85