APA (7th ed.) Citation

Langenscheidt, Felix, & Theo. (1991). Oh, Maria. Langenscheidt.

Chicago Style (17th ed.) Citation

Langenscheidt, Felix, and Theo. Oh, Maria. Berlin: Langenscheidt, 1991.

MLA (8th ed.) Citation

Langenscheidt, et al. Oh, Maria. Langenscheidt, 1991.

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