APA (7th ed.) Citation

Stiefel, F., Honigstein, I. H., & Schwamborn, H. (2009). Ingelore. Grasshopper Film.

Chicago Style (17th ed.) Citation

Stiefel, Frank, Ingelore Herz Honigstein, and Hanna Schwamborn. Ingelore. New York, NY: Grasshopper Film, 2009.

MLA (9th ed.) Citation

Stiefel, Frank, et al. Ingelore. Grasshopper Film, 2009.