Gaya APA

Johnson, C. (1987). Watercolor Tricks & Techniques (Cetakan Pertama). Cincinnati, Ohio: North Light Books, an imprint of F&W Publications, Inc..

Gaya MLA

Johnson, Cathy. "Watercolor Tricks & Techniques". Cetakan Pertama Cincinnati, Ohio: North Light Books, an imprint of F&W Publications, Inc., 1987. Text.