Cita APA (7a ed.)

(2010). Left, right, up, down: New directions in signage and wayfinding. Gestalten.

Cita Chicago Style (17a ed.)

Left, Right, Up, Down: New Directions in Signage and Wayfinding. [Berlin]: Gestalten, 2010.

Cita MLA (9a ed.)

Left, Right, Up, Down: New Directions in Signage and Wayfinding. Gestalten, 2010.