Rath, G. (2005). The watercolorist's answer book: 425 tips, techniques and solutions. North Light Books.
Chicago-referens (17:e uppl.)Rath, Gina. The Watercolorist's Answer Book: 425 Tips, Techniques and Solutions. Cincinnati, Ohio: North Light Books, 2005.
MLA-referens (8:e uppl.)Rath, Gina. The Watercolorist's Answer Book: 425 Tips, Techniques and Solutions. North Light Books, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.