Cita APA (7th ed.)

Keller, W., & Heuer, F. (1977). Schillers Wallenstein.

Cita Chicago (17th ed.)

Keller, Werner, i Fritz Heuer. Schillers Wallenstein. Darmstadt, 1977.

Cita MLA (8th ed.)

Keller, Werner, i Fritz Heuer. Schillers Wallenstein. 1977.