Cita APA (7th ed.)

Stock, A., & Stock, A. (2010). Himmel und Erde. Schöningh.

Cita Chicago (17th ed.)

Stock, Alex, i Alex Stock. Himmel Und Erde. Paderborn [u. a.]: Schöningh, 2010.

Cita MLA (8th ed.)

Stock, Alex, i Alex Stock. Himmel Und Erde. Schöningh, 2010.