United States. Center for Design Excellence and the Arts. (2002). Vision + voice. U.S. General Services Administration, Public Buildings Service, Office of the Chief Architect, Center for Design Excellence and the Arts.
Dyfyniad Arddull ChicagoUnited States. Center for Design Excellence and the Arts. Vision + Voice. Washington, DC: U.S. General Services Administration, Public Buildings Service, Office of the Chief Architect, Center for Design Excellence and the Arts, 2002.
Dyfyniad MLAUnited States. Center for Design Excellence and the Arts. Vision + Voice. U.S. General Services Administration, Public Buildings Service, Office of the Chief Architect, Center for Design Excellence and the Arts, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.