APA (7th ed.) Citation

Lewald, F., & Helmer, U. (1993). Jenny. Helmer.

Chicago Style (17th ed.) Citation

Lewald, Fanny, and Ulrike Helmer. Jenny. Frankfurt am Main: Helmer, 1993.

MLA (8th ed.) Citation

Lewald, Fanny, and Ulrike Helmer. Jenny. Helmer, 1993.

Warning: These citations may not always be 100% accurate.