Schöllhammer, G. (1993). Vienna Letter. Artforum.
Cita Chicago (17th ed.)Schöllhammer, Georg. "Vienna Letter." Artforum 1993.
Cita MLA (8th ed.)Schöllhammer, Georg. "Vienna Letter." Artforum, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.