Gaya APA

Haller, L., Warmke, L, H, C. (2001). Creative Edge: Letterhead + Business Card Design (1). Cincinnati, Ohio: North Light Books.

Gaya MLA

Haller, Lynn., Warmke, Lynn, Haller, Clare. "Creative Edge: Letterhead + Business Card Design". 1 Cincinnati, Ohio: North Light Books, 2001. Desain Grafis.