Lewis, D. (1983). Watercolor painting techniques. Watson-Guptill Publications.
芝加哥风格引文Lewis, David. Watercolor Painting Techniques. New York: Watson-Guptill Publications, 1983.
MLA引文Lewis, David. Watercolor Painting Techniques. Watson-Guptill Publications, 1983.
警告：这些引文格式不一定是100％准确.