Harris, J. S. (2020). The art of spiral drawing: Learn to create spiral art and geometric drawings using pencil, pen, and more. Walter Foster Publishing.
Chicago Style (17th ed.) CitationHarris, Jonathan Stephen. The Art of Spiral Drawing: Learn to Create Spiral Art and Geometric Drawings Using Pencil, Pen, and More. Beverly: Walter Foster Publishing, 2020.
MLA (8th ed.) CitationHarris, Jonathan Stephen. The Art of Spiral Drawing: Learn to Create Spiral Art and Geometric Drawings Using Pencil, Pen, and More. Walter Foster Publishing, 2020.
Warning: These citations may not always be 100% accurate.