Sievers, N. (2010). Kunstbeitrag: Niels Sievers : "Night on earth". Das Plateau.
Cita Chicago (17th ed.)Sievers, Niels. "Kunstbeitrag: Niels Sievers : "Night on Earth"." Das Plateau 2010.
Cita MLA (8th ed.)Sievers, Niels. "Kunstbeitrag: Niels Sievers : "Night on Earth"." Das Plateau, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.