APA (7th ed.) Citation

Zimmermann, R. (1991). Wilhelm M. Busch (1908-1987).

Chicago Style (17th ed.) Citation

Zimmermann, Rainer. Wilhelm M. Busch (1908-1987). 1991.

MLA (9th ed.) Citation

Zimmermann, Rainer. Wilhelm M. Busch (1908-1987). 1991.

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