Cita APA (7th ed.)

Walker art center & Friedman, M. S. (1989). Graphic design in America: A visual language history. Walker Art center.

Cita Chicago (17th ed.)

Walker art center i Mildred S. Friedman. Graphic Design in America: A Visual Language History. Minneapolis: Walker Art center, 1989.

Cita MLA (9th ed.)

Walker art center i Mildred S. Friedman. Graphic Design in America: A Visual Language History. Walker Art center, 1989.