(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.
Precaución: Estas citas no son 100% exactas.