Cullen, C. D. (2004). Graphic design that works: Secrets for successful logo, magazine, brochure, promotion , and identity design. Rockport.
Chicago-viite (17. p.)Cullen, Cheryl Dangel. Graphic Design That Works: Secrets for Successful Logo, Magazine, Brochure, Promotion , and Identity Design. Gloucester, Mass: Rockport, 2004.
MLA-viite (9. p.)Cullen, Cheryl Dangel. Graphic Design That Works: Secrets for Successful Logo, Magazine, Brochure, Promotion , and Identity Design. Rockport, 2004.
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