APA (7th ed.) Citation

Klara & Theo. (2004). Anna (1. [Dr.].). Langenscheidt.

Chicago Style (17th ed.) Citation

Klara and Theo. Anna. 1. [Dr.]. Berlin [u.a.]: Langenscheidt, 2004.

MLA (9th ed.) Citation

Klara and Theo. Anna. 1. [Dr.]. Langenscheidt, 2004.

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