The Watercolorist's Answer Book 
edited by Gina Rath 
 - Ohio  North Light Books  2005 
 - 191p.  ill.  28cm. 
<br/><br/> includes index : p. 189 - 191 
<br/><br/><label>ISBN: </label>1581806337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Watercolor painting--techniques