APA (7th ed.) Citation

Ungerer, T., & Frietsch, C. (1992). Tomi Ungerer. Elster-Verl.

Chicago Style (17th ed.) Citation

Ungerer, Tomi, and Christian Frietsch. Tomi Ungerer. Baden-Baden: Elster-Verl, 1992.

MLA (9th ed.) Citation

Ungerer, Tomi, and Christian Frietsch. Tomi Ungerer. Elster-Verl, 1992.

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