APA (7th ed.) Citation

Wittmack, L. (1877). Monströse Birnen ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Wittmack, Ludwig. Monströse Birnen. [Sonderdr.]. 1877.

MLA (9th ed.) Citation

Wittmack, Ludwig. Monströse Birnen. [Sonderdr.]. 1877.

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