Winnewisser, R. (1979). Urs Lüthi: The last show in black and white. Galerie Isy Brachot.
Cita Chicago (17th ed.)Winnewisser, Rolf. Urs Lüthi: The Last Show in Black and White. Bruxelles: Galerie Isy Brachot, 1979.
Cita MLA (8th ed.)Winnewisser, Rolf. Urs Lüthi: The Last Show in Black and White. Galerie Isy Brachot, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.