Cita APA (7th ed.)

Walker, L., & Blount, S. (1991). Letterhead & logo designs: Creating the corporate image. Rockport Publishers.

Cita Chicago (17th ed.)

Walker, Lisa, i Steve Blount. Letterhead & Logo Designs: Creating the Corporate Image. Rockport, Mass: Rockport Publishers, 1991.

Cita MLA (9th ed.)

Walker, Lisa, i Steve Blount. Letterhead & Logo Designs: Creating the Corporate Image. Rockport Publishers, 1991.