Cita APA (7th ed.)

Ullrich, W., & Springer, S. (2011). Gleam: Sibylle Springer. Kerber.

Cita Chicago (17th ed.)

Ullrich, Wolfgang, i Sibylle Springer. Gleam: Sibylle Springer. Bielefeld [u.a.]: Kerber, 2011.

Cita MLA (8th ed.)

Ullrich, Wolfgang, i Sibylle Springer. Gleam: Sibylle Springer. Kerber, 2011.