Sprenger, T., & Schiffers, A. (2003). Bin in der Steppe: Antje Schiffers. Revolver.
Chicago Style (17. basım) AtıfSprenger, Thomas, ve Antje Schiffers. Bin in Der Steppe: Antje Schiffers. Frankfurt am Main: Revolver, 2003.
MLA (8th ed.) AtıfSprenger, Thomas, ve Antje Schiffers. Bin in Der Steppe: Antje Schiffers. Revolver, 2003.
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