Johnson, C. (1992). Creating textures in watercolor: A guide to painting 83 textures from grass to glass to tree bark to fur. North Light.
Chicago-viite (17. p.)Johnson, Cathy. Creating Textures in Watercolor: A Guide to Painting 83 Textures from Grass to Glass to Tree Bark to Fur. Cincinnati: North Light, 1992.
MLA-viite (9. p.)Johnson, Cathy. Creating Textures in Watercolor: A Guide to Painting 83 Textures from Grass to Glass to Tree Bark to Fur. North Light, 1992.
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